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MS 3219 - James Watt and Family Papers - 13th century - 1873

1 - Records of Thomas Watt (1639 or 1642 - 1727) - 1694 - 1727

2 - Records of John Watt senior (1694 - 1736) - 1714 - 1744

3 - Records of James Watt of Greenock - 1724 - 1787

4 - Records of James Watt (1736 - 1819)

5 - Records of John Watt Jr. (1739 - 1762) - 1759 - 1762

6 - Records of James Watt Jr. (1769 - 1848) - 13th cent. - 1848

1 - Correspondence of James Watt jr. - 1784 - 1844

1 - Incoming correspondence of James Watt jr. - 1784 - 1844

1 - Incoming letters to James Watt jr. from James Watt - 1784 - 1818

1 - Letter. James Watt (Birmingham) to James Watt jr. [? Bersham]. - 15 May 1784

2 - Letter. James Watt (Birmingham) to James Watt jr. (Bersham). - 13 July 1784

3 - Letter. James Watt (Birmingham) to James Watt jr. [Bersham]. - 01 August 1784

4 - Letter. James Watt (Birmingham) to James Watt jr. (Bersham). - 17 October 1784

5 - Letter. James Watt (Birmingham) to James Watt jr. [Paris]. - 01 December 1784

6 - Letter. James Watt (Birmingham) to James Watt jr. (Geneva; c/o Mr De Luc). - 07 January 1785

7 - Letter. James Watt (Birmingham) to James Watt jr. (Geneva; c/o Mr De Luc). - 16 January 1785

8 - Letter. James Watt (Birmingham) to James Watt jr. (Geneva; c/o Mr De Luc). - 23 January 1785

9 - Letter. James Watt (Birmingham) to James Watt jr. (Geneva; c/o Mr De Luc). - 13 March 1785

10 - Letter. James Watt (Birmingham) to James Watt jr. (Geneva; c/o Mr De Luc). - 27 March 1785

11 - Letter. James Watt (Birmingham) to James Watt jr. (Geneva; c/o Mr De Luc). - 01 May 1785

12 - Letter. James Watt (Birmingham) to James Watt jr. (Geneva; c/o Mr De Luc). - 08 May 1785

13 - Letter. James Watt (Birmingham) to James Watt jr. (Geneva; c/o Mr De Luc). - 05 June 1785

14 - Letter. James Watt (Birmingham) to James Watt jr. (Geneva; c/o Mr De Luc). - 17 July 1785

15 - Letter. James Watt (Birmingham) to James Watt jr. (Geneva; c/o Mr De Luc). - 05 August 1785

16 - Letter. James Watt (Birmingham) to James Watt jr. (Geneva; c/o Mr De Luc). - 12 August 1785

17 - Letter. James Watt (Birmingham) to James Watt jr. (Geneva; c/o Mr De Luc). - 02 September 1785

18 - Letter. James Watt (Birmingham) to James Watt jr. (Stadtfeld, Eisenach; c/o Mr Rheinhard). - 13 November 1785

19 - Letter. James Watt (Birmingham) to James Watt jr. (Stadtfeld, Eisenach; c/o Mr Rheinhard). - 04 December 1785

20 - Letter. James Watt (Birmingham) to James Watt jr. (Stadtfeld, Eisenach; c/o Mr Reinhard). - 08 January 1786

21 - Letter. James Watt (Birmingham) to James Watt jr. (Stadtfeld, Eisenach; c/o Mr Rheinhard). - 15 February 1786

22 - Letter. James Watt (Birmingham) to James Watt jr. (Stadtfeld, Eisenach; c/o Mr Rheinhard). - 19 February 1786

23 - Letter. James Watt (Birmingham) to James Watt jr. (Stadtfeld, Eisenach; c/o Mr Rheinhard), per Mr Startin. - 14 March 1786

24 - Letter. Ann Watt (Birmingham) to James Watt jr. (Stadtfeld, Eisenach; c/o Mr Rheinhard), per Mr Startin. - 15 March 1786

25 - Letter. James Watt (Birmingham) to James Watt jr. (Stadtfeld, Eisenach; c/o Mr Rheinhard. - 23 July 1786

26 - Letter. James Watt (Birmingham) to James Watt jr. (Stadtfeld, Eisenach; c/o Mr Rheinhard). - 13 August 1786

27 - Letter. James Watt (Birmingham) to James Watt jr. (Stadtfeld, Eisenach; c/o Mr Rheinhard). - 10 September 1786

28 - Letter. James Watt (Birmingham) to James Watt jr. (Stadtfeld, Eisenach; c/o Mr Rheinhard). - 08 October 1786

29 - Letter. James Watt (Birmingham) to James Watt jr. (Stadtfeld, Eisenach; c/o Mr Rheinhard). - 15 October 1786

30 - Letter. James Watt (Paris) to James Watt jr. (Eisenach; c/o Mr Streiber). - 07 December 1786

31 - Letter. James Watt (Birmingham) to James Watt jr. (Eisenach; c/o Mr Streiber). - 01 February 1787

32 - Letter. James Watt (Birmingham) to James Watt jr. (Freiburg; c/o Mr Kabisch). - 20 February 1787

33 - Letter. James Watt (Birmingham) to James Watt jr. (Freiburg; c/o Mr Kabisch). - 09 April 1787

34 - Letter. James Watt (Birmingham) to James Watt jr. (Freiburg; c/o Mr Kabisch). - 07 May 1787

35 - Letter. James Watt (Birmingham) to James Watt jr. (Freiburg; c/o Mr Kabisch). - 01 July 1787

36 - Letter. James Watt (Birmingham) to James Watt jr. (Freiburg; c/o Mr Kabisch). - 22 July 1787

37 - Letter. James Watt (Birmingham) to James Watt jr. (Freiburg; c/o Mr Kabisch). - 29 July 1787

38 - Letter. Ann Watt (Glasgow) to James Watt jr. (Birmingham, Harper's Hill). - 16 November 1787

39 - Letter. Ann Watt (Glasgow) to James Watt jr. (Birmingham, Harper's Hill). - 05 December 1787

40 - Letter. James Watt (Glasgow) to James Watt jr. (Birmingham; Harper's Hill). - 11 December 1787

41 - Letter. James Watt (Glasgow) to James Watt jr. (Birmingham, Harper's Hill). - 21 December 1787

42 - Letter. James Watt (Clover; nr. Glasgow) to James Watt jr. (Birmingham, Harper's Hill). - 27 December 1787

43 - Letter. Gregory and Ann Watt (Glasgow) to James Watt jr. (Birmingham, Harper's Hill). - 27 December 1787

44 - Letter. James Watt (Glasgow) to James Watt jr. (Birmingham, Harper's Hill). - 06 January 1788

45 - Letter. James Watt (Birmingham) to James Watt jr. (——). - 24 September 1788

46 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Thomas Henry, apothecary). - 27 October 1788

47 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Charles Taylor, manufacturer). - 04 November 1788

48 - Letter. James Watt (Birmingham) to James Watt jr. ([Manchester]). - 12 November 1788

49 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 18 November 1788

50 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 28 November 1788

51 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 19 December 1788

52 - Letter. James Watt (Birmingham) to James Watt jr. (——). - 21 December 1788

53 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 31 December 1788

54 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 02 January 1789

55 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 19 January 1789

56 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 16 March 1789

57 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 15 April 1789

58 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 16 June 1789

59 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 27 June 1789

60 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 27 June 1789

61 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 12 July 1789

62 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 02 August 1789

63 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 28 August 1789

64 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 18 September 1789

65 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 11 October 1789

66 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 09 December 1789

67 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 11 January 1790

68 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 08 February 1790

69 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 16 February 1790

70 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 07 March 1790

71 - Letter. James Watt [Birmingham] to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 11 April 1790

72 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 25 April 1790

73 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 16 May 1790

74 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 09 July 1790

75 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 20 July 1790

76 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 16 September 1790

77 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 03 October 1790

78 - Letter. James Watt (Soho) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 16 October 1790

79 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 24 November 1790

80 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 26 November 1790

81 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 05 December 1790

82 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 14 December 1790

83 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 29 December 1790

84 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 25 January 1791

85 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 06 March 1791

86 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 17 March 1791

87 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 13 April 1791

88 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 22 April 1791

89 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 24 April 1791

90 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 03 July 1791

91 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 15 July 1791

92 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 18 July 1791

93 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell). - 16 Aug1791

94 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Taylor & Maxwell. - 25 August 1791

95 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Thomas & Richard Walker). - 18 September 1791

96 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Thomas & Richard Walker). - 02 October 1791

97 - Letter. James Watt (Birmingham) to James Watt jr. (Manchester; c/o Thomas & Richard Walker). - 07 February 1792

98 - Letter. James Watt (Birmingham) to James Watt jr. (——). - 08 January 1793

99 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 28 February 1793

100 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 18 March 1793

101 - Letter. James Watt (Heathfield) to James Watt jr. (Rome; c/o Mr Torlonia). - 28 June 1793

102 - Letter. James Watt (Heathfield) to James Watt jr. (Milan; c/o Mr Claude La Baume). - 25 September 1793

103 - Letter. James Watt (Heathfield) to James Watt jr. (Frankfort). - 09 October 1793

104 - Letter. James Watt (Birmingham) to James Watt jr. (Frankfort). - 16 October 1793

105 - Letter. James Watt (London) to James Watt jr. (Rotterdam; c/o J.D.H.Van Liender). - 25 November 1793

106 - Letter. James Watt (Birmingham) to James Watt jr. (Rotterdam; c/o J.D.H.Van Liender). - 01 December 1793

107 - Letter. James Watt (Birmingham) to James Watt jr. (Amsterdam; c/o Messrs. Ambroggio & Sawyer). - 09 January 1794

108 - Letter. James Watt (Soho) to James Watt jr. (London; 6, Green Lettuce Lane). - 24 February 1794

109 - Letter. James Watt (——) to James Watt jr. (London; 6, Green Lettuce Lane). - 21 May 1794

110 - Letter. James Watt (Bala, Merionethshire) to James Watt jr. (Soho). - 23 July 1794

111 - Letter. James Watt (Bangor Ferry) to James Watt jr. (Soho). - 28 July 1794

112 - Letter. James Watt (Holywell) to James Watt jr. (Soho). - 01 August 1794

113 - Letter. Ann Watt (Glasgow) to James Watt jr. (Soho). - 30 October 1794

114 - Draft memorandum by James Watt - nd. [c.1794]

115 - Drawing and description of an invention to obtain a circular motion of a piston rod of a steam engine without the introduction of a beam. - nd. [18th cent.]

116 - Copy Letter. James Pearson (Soho) to John Wilkinson (Broseley, Shropshire) - 12 March 1795

117 - Letter. James Watt (Bristol) to James Watt jr. (Soho). - 22 June 1797

118 - Letter. James Watt (Lymington, Hampshire) to James Watt jr. (Soho). - 24 July 1797

119 - Letter. James Watt (Lymington) to James Watt jr. (Soho). - 26 July 1797

120 - Letter. James Watt (Cowes) to James Watt jr. (Soho). - 01 August 1797

121 - Letter. James Watt (Cowes) to James Watt jr. (Soho). - 04 August 1797

122 - Letter. James Watt (Southampton) to James Watt jr. (Soho). - 10 August 1797

123 - Letter. Gregory Watt (Soho) to James Watt jr. (Clifton; near Bristol, c/o Dalton's Hotel). - 16 September 1797

124 - Letter. James Watt (Soho) to James Watt jr. (Clifton, near Bristol). - 23 September 1797

125 - Letter. James Watt (Soho) to James Watt jr. (Clifton, near Bristol). - 03 October 1797

126 - Letter. James Watt (Soho) to James Watt jr. (Clifton, near Bristol). - 21 October 1797

127 - Letter. Gregory Watt (Soho) to James Watt jr. (Clifton; near Bristol, c/o Dalton's Hotel). - 23 October 1797

128 - Letter. James Watt (Soho) to James Watt jr. (Clifton, near Bristol). - 30 October 1797

129 - Letter. Gregory Watt (Soho) to James Watt jr. (Clifton; near Bristol, c/o Dalton's Hotel). - 02 November 1797

130 - Letter. James Watt (Soho) to James Watt jr. (Clifton, near Bristol). - 05 November 1797

131 - Letter. James Watt (Soho) to James Watt jr. (Clifton, near Bristol). - 16 November 1797

132 - Letter. James Watt (Soho) to James Watt jr. (Clifton, near Bristol). - 21 November 1797

133 - Letter. James Watt (Soho) to James Watt jr. (Clifton, near Bristol). - 30 November 1797

134 - Letter. James Watt (Soho) to James Watt jr. (Clifton, near Bristol). - 04 December 1797

135 - Letter. James Watt (Heathfield) to James Watt jr. (Clifton, near Bristol). - 04 December 1797

136 - Letter. James Watt (Soho) to James Watt jr. (Clifton, near Bristol). - 06 December 1797

137 - Letter. Gregory Watt (Truro, Cornwall) to James Watt jr. (Clifton; near Bristol, c/o Dalton's Hotel). - 06 December 1797

138 - Letter. Ann Watt (Heathfield) to James Watt jr. (Soho Foundry). - 15 December 1797

139 - Letter. Ann Watt (Heathfield) to James Watt jr. (Soho Foundry). - 24 January 1798

140 - Letter. James Watt (Heathfield) to James Watt jr. (Newcastle upon Tyne; c/o Thomas Barnes, Walker Coal Office). - 17 June 1798

141 - Letter. James Watt (Soho) to James Watt jr. (Glasgow; c/o James Miller, Morison's Court, Argyle Street). - 14 July 1798

142 - Letter. James Watt (Heathfield) to James Watt jr. (Glasgow; c/o James Miller, Morison's Court, Argyle Street). - 29 July 1798

143 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 04 September 1798

144 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 15 September 1798

145 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 05 October 1798

146 - Letter. James Watt (Edinburgh) to James Watt jr. (Soho). - 12 October 1798

147 - Letter. James Watt (Bath; 5,Oxford Row) to James Watt jr. (Soho). - 07 October 1799

148 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 08 October 1799

149 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 15 October 1799

150 - Letter. James Watt (Cheltenham) to James Watt jr. (——). - 18 May 1800

151 - Letter. James Watt (Gloucester) to James Watt jr. (——). - May 1800

152 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 27 September 1800

153 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 05 October 1800

154 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 13 October 1800

155 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 25 October 1800

156 - Letter. James Watt (Ferrybridge,Yorkshire) to James Watt jr. (——). - 06 November 1800

157 - Letter. James Watt [Heathfield] to James Watt jr. (The Rookery). - nd. [ April 1801]

158 - Letter. James Watt (London; 4, Norfolk Street) to James Watt jr. (Soho). - 16 May 1801

159 - Letter. James Watt (London) to James Watt jr. (——). - 26 May 1801

160 - Letter. James Watt (London; Norfolk Street) to James Watt jr. (——). - 03 June 1801

161 - Letter. James Watt (Heathfield) to James Watt jr. (Dundee; Post Office). - 31 July 1801

162 - Letter. James Watt (Heathfield) to James Watt jr. (To be called for at the Post Office, Falkirk). - 06 August 1801

163 - Letter. James Watt (Heathfield) to James Watt jr. (To be called for at the Post Office, Falkirk). - 11 August 1801

164 - Letter. James Watt (Heathfield) to James Watt jr. (To be called for at the Post Office, Edinburgh). - 18 August 1801

165 - Letter. James Watt (Heathfield) to James Watt jr. (Glasgow; c/o Mr Miller, Morison's Court, Argyle Street). - 31 August 1801

166 - Letter. James Watt (Heathfield) to James Watt jr. (Dumfries; c/o Post Office). - 10 September 1801

167 - Letter. James Watt (Heathfield) to James Watt jr. (Newcastle upon Tyne; c/o Post Office). - 20 September 1801

168 - Letter. James Watt (Soho) to James Watt jr. (London; 13 London Street). - 19 January 1802

169 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 20 January 1802

170 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 25 January 1802

171 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 26 January 1802

172 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 29 January 1802

173 - Letter. James Watt (London; 38 Fenchurch Street) to James Watt jr. (Soho). - nd. [24 August 1802]

174 - Letter. James Watt (London) to James Watt jr. (Soho). - 27 August 1802

175 - Letter. James Watt (London) to James Watt jr. (Soho). - 30 August 1802

176 - Letter. James Watt (Calais) to James Watt jr. (Soho). - 02 September 1802

177 - Letter. James Watt (Brussels; Hotel d'Angleterre) to James Watt jr. (Soho). - 08 September 1802

178 - Letter. James Watt (Aix la Chapelle) to James Watt jr. (Soho). - 14 September 1802

179 - Letter. James Watt (Frankfort) to James Watt jr. (Soho). - 21 September 1802

180 - Letter. James Watt (Strasburg) to James Watt jr. (Soho). - 02 October 1802

181 - Letter. James Watt (Paris; Hotel de Courland, Place Louis XV) to James Watt jr. (Soho). - 08 October 1802

182 - Letter. James Watt (Paris) to James Watt jr. (Soho). - 17 October 1802

183 - Letter. James Watt (Paris) to James Watt jr. (Soho). - 24 October 1802

184 - Letter. James Watt (Paris) to James Watt jr. (Soho). - 31 October 1802

185 - Letter. James Watt (Paris) to James Watt jr. (Soho). - 10 November 1802

186 - Letter. Ann Watt (Heathfield) to James Watt jr. (Soho; redirected from Clifton, near Bristol, c/o Dr Beddoes). - [22 April] 1803

187 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13, London Street). - 24 June 1803

188 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Messrs. Phillips, Wood & Lee). - 25 July 1803

189 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Messrs. Phillips, Wood & Lee). - 29 July 1803

190 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Messrs. Phillips, Wood & Lee). - 02 August 1803

191 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Messrs. Phillips, Wood & Lee). - 03 August 1803

192 - Letter. James Watt (Heathfield) to James Watt jr. (Manchester; c/o Messrs. Phillips, Wood & Lee). - 07 August 1803

193 - Letter. James Watt [Heathfield] to James Watt jr. (The Rookery; when he comes home). - 07 August 1803

194 - Letter. James Watt (Glasgow) to James Watt jr. (Manchester; c/o Messrs. Phillips, Wood & Lee). - 21 August 1803

195 - Letter. James Watt (Glenarbuck) to James Watt jr. (Soho). - 23 August [1803]

196 - Letter. James Watt and Ann Watt (Glenarbuck) to James Watt jr. (Soho). - 31 August 1803

197 - Letter. James Watt (Glenarbuck) to James Watt jr. (Soho). - 11 September 1803

198 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 27 September 1803

199 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 10 October 1803

200 - Letter. James Watt (Edinburgh) to James Watt jr. (Soho). - 16 October 1803

201a - Letter. James Watt ([Heathfield]) to James Watt jr. (Soho). - nd. [18 November 1803]

201b - Letter. J. Grice (——) to James Watt (——). - 17 November 1803

202 - Letter. James Watt (Clifton) to James Watt jr. (London, c/o J. Tuffen, Park Lane; redirected from Soho). - 07 May 1804

203 - Letter. James Watt (Bath; 42 Milsom Street) to James Watt jr. (Soho). - 15 May 1804

204 - Letter. James Watt (Bath; 42 Milsom Street) to James Watt jr. (Soho). - 19 May 1804

205 - Letter. James Watt (Bath; 42 Milsom Street) to James Watt jr. (Soho). - 20 May 1804

206 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 22 May 1804

207 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 28 May 1804

208 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 30 May 1804

209 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 01 June 1804

210 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 02 June 1804

211 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 08 June 1804

212 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 13 June 1804

213 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 14 June 1804

214 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 15 June 1804

215 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 16 June 1804

216 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 19 June 1804

217 - Letter. James Watt (Bath; 3 Sydney Place) to James Watt jr. (Soho). - 19 June 1804

218 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 21 June 1804

219 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 22 June 1804

220 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 23 June 1804

221 - Letter. James Watt (Bath; 7 Queen's Parade) to James Watt jr. (Soho). - 25 June 1804

222 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 26 June 1804

223 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 28 June 1804

224 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 30 June 1804

225 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 02 July 1804

226 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 04 July 1804

227 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 12 July 1804

228 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 15 July 1804

229 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 17 July 1804

230 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 22 July 1804

231 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 26 July 1804

232 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 29 July 1804

233 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 31 July 1804

234 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 02 August 1804

235 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 07 August 1804

236 - Letter. James Watt (Bath) to James Watt jr. (Kington, Herefs. c/o Cheese & Davies). - 17 August 1804

237 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 19 August 1804

238 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 22 August 1804

239 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 25 August 1804

240 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 31 August 1804

241 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 02 September 1804

242a - Letter. James Watt (Bath) to James Watt jr. (Soho). - 03 September 1804

242b - Letter. James Watt (Bath) to John Houghton (Birmingham Canal Office). - 03 September 1804

243 - Letter. Ann Watt (Bath) to James Watt jr. (Soho). - 04 September 1804

244 - Letter. James Watt (Bath) to James Watt jr. (Soho). - 07 September 1804

245 - Letter. James Watt (Glastonbury) to James Watt jr. (Soho). - 08 September 1804

246 - Letter. James Watt (Exeter) to James Watt jr. (London; redirected from 13 London Street to Ibbotson's Hotel, Vere Street). - 12 September 1804

247 - Letter. James Watt (Sidmouth) to James Watt jr. (London; OPark Lane, c/o Mr Tuffen. Redirected from Soho). - 14 September 1804

248 - Letter. James Watt (Sidmouth) to James Watt jr. (London; 13 London Street). - 20 September 1804

249 - Letter. James Watt (London; Park Lane, c/o Mr Tuffen) to James Watt jr. (Soho). - 22 May [1805]

250 - Letter. James Watt (London; London Street) to James Watt jr. (Soho). - 31 May [1805]

251 - Letter. James Watt (London; Park Lane, c/o Mr Tuffen) to James Watt jr. (Soho) - 01 June 1805

252 - Letter. James Watt (London) to James Watt jr. (Soho). - 08 June 1805

253 - Letter. James Watt (London) to James Watt jr. (Soho). - 12 June 1805

254 - Letter. James Watt (London) to James Watt jr. (Soho). - 21 June 1805

255 - Letter. James Watt (London) to James Watt jr. (Soho). - 01 July 1805

256 - Letter. James Watt (Heathfield) to James Watt jr. (Belfast; c/o post office). - 21 July 1805

257 - Letter. James Watt (Heathfield) to James Watt jr. (Glasgow; c/o Gilbert Hamilton). - 09 August 1805

258 - Letter. James Watt (Heathfield) to James Watt jr. (Glasgow; c/o Gilbert Hamilton). - 11 August 1805

259 - Letter. James Watt (Heathfield) to James Watt jr. (Glasgow; c/o Gilbert Hamilton). - 23 August 1805

260 - Letter. James Watt (Heathfield) to James Watt jr. (The Rookery).'To lie at Heathfield till he arrives'. - 26 August 1805

261 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 30 August 1805

262 - Letter. James Watt (Scarborough) to James Watt jr. (Kendal; Lowwood Inn). - 10 September 1805

263 - Letter. James Watt (Craighead) to James Watt jr. (Soho). - 19 September 1805

264a - Letter. Ann Watt (Glenarbuck) to James Watt jr. (Soho). - 27 September 1805

264b - Letter. [Miss Alexander] (——) to Miss McGrigor (——). - nd. [1805]

265 - Letter. James Watt (Glenarbuck) to James Watt jr. (Soho). - 04 October 1805

266 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 11 October 1805

267 - Letter. Ann Watt (Glenarbuck) to James Watt jr. (Soho). - 20 October 1805

268 - Letter. James Watt (Glenarbuck) to James Watt jr. (Soho). - 26 October 1805

269 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 30 October 1805

270 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 13 November 1805

271 - Letter. James Watt (Edinburgh) to James Watt jr. (Soho). - 24 November 1805

272 - Letter. James Watt (Edinburgh) to James Watt jr. (Soho). - 27 November 1805

273 - Letter. James Watt (Edinburgh) to James Watt jr. (Soho). - 01 December 1805

274 - Letter. James Watt (Durham) to James Watt jr. (Soho). - 05 December 1805

275 - Letter. James Watt (Heathfield) to James Watt jr. [London] - 06 January 1806

276 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 17 January 1806

277 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 28 April 1806

278 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 29 April 1806

279 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 06 May 1806

280 - Letter. James Watt (Heathfield) to James Watt jr. (Soho). - 01 July 1806

281 - Letter. James Watt (Cheltenham; 3 St. George's Square) to James Watt jr. (Soho). - 22 August 1806

282 - Letter. James Watt (Cheltenham) to James Watt jr. (Soho). - 28 August 1806

283 - Letter. James Watt (Cheltenham) to James Watt jr. (The Rookery). - 03 September 1806

284 - Letter. James Watt (Cheltenham) to James Watt jr. (Soho). - 21 September 1806

285 - Letter. James Watt (Oxford) to James Watt jr. (Soho). - 28 September 1806

286 - Letter. James Watt (London; Norfolk Street) to James Watt jr. (Soho). - 10 October 1806

287 - Letter. James Watt [Birmingham] to James Watt jr. (London; 13 London Street). - 01 March 1807

288 - Letter. James Watt (London) to James Watt jr. (Soho). - 23 May 1807

289 - Letter. James Watt (London) to James Watt jr. (Soho). - 27 May 1807

290 - Letter. James Watt (London) to James Watt jr. (Soho). - 03 June 1807

291a - Letter. James Watt (London) to James Watt jr. (Soho). - 09 June 1807

291b - Letter. James Crummer (Howey) to James Watt (London; 36 Norfolk Street). - 01 June 1807

292 - Letter. Ann Watt (London; 36 Norfolk Street) to James Watt jr. (Soho). - 09 June 1807

293 - Letter. James Watt (London) to James Watt jr. (Soho). - 13 June 1807

294 - Letter. James Watt (Heathfield) to James Watt jr. (Howey, nr. Builth, c/o Mr Crummer). - 14 July 1807

295 - Letter. James Watt (Elvanfoot; Lanarkshire) to James Watt jr. (Soho). - 30 August 1807

296 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 05 September 1807

297 - Letter. James Watt (Glenarbuck) to James Watt jr. (Soho). - 14 September 1807

298 - Letter. Ann Watt (Glenarbuck) to James Watt jr. (Soho). - 21 September 1807

299 - Letter. James Watt (Craighead) to James Watt jr. (Soho). - 02 October 1807

300 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 09 October 1807

301 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 21 October 1807

302a - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 05 November 1807

302b - Slip of paper with a book title written on it: 'Dr. de Roche's Theses de lupuli humuli viribus medicis, believe ab[ou]t 1783' - nd. [c. 1783]

303 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 19 November 1807

304 - Letter. James Watt (Heathfield) to James Watt jr. (Kington, Herefordshire;The Oxford Arms) - 03 December 1807

305 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London St.). - 22 February 1808

306 - Letter. Ann Watt (Heathfield) to James Watt jr. (London; 13 London St.). - 29 February 1808

307 - Letter. James Watt (Heathfield) to James Watt jr. (Howey, nr. Builth. c/o James Crummer.). - 16 March 1808

308 - Letter. James Watt (Heathfield) to James Watt jr. (Howey, nr. Builth. c/o James Crummer). - 20 March 1808

309 - Letter. James Watt (Heathfield) to James Watt jr. (Oxford Arms, Kington). - 24 March 1808

310 - Letter. James Watt (Heathfield) to James Watt jr. (Kington, Herefordshire; The Oxford Arms). - 27 March 1808

311 - Letter. James Watt (Heathfield) to James Watt jr. (Howey, nr. Builth. c/o James Crummer). - 29 March 1808

312 - Letter. James Watt (Heathfield) to James Watt jr. (Birmingham; redirected from from Oxford Arms, Kington). - 02 April 1808

313 - Letter. James Watt (Kington) to James Watt jr. (Soho). - 20 July 1808

314 - Letter. James Watt (Howey) to James Watt jr. (Soho). - 24 July 1808

315 - Letter. James Watt (London; 4 Norfolk Street) to James Watt jr. (Cark; c/o Mr Stockdale). - 19 September 1808

316 - Letter. James Watt (Brighton) to James Watt jr. (Glasgow; c/o Gilbert Hamilton). - 26 September 1808

317 - Letter. James Watt (Heathfield) to James Watt jr. (Glasgow; c/o Gilbert Hamilton). - 22 October 1808

318 - Letter. James Watt (Heathfield) to James Watt jr. ( Edinburgh; 33, North Frederick Street, c/o Mrs Dicks). - 06 November 1808

319 - Letter. James Watt [Heathfield] to James Watt jr. ( Edinburgh; MacGregor's Hotel, 8, Princes Street). - 10 November 1808

320 - Letter. James Watt [Heathfield] to James Watt jr. ( Edinburgh). - 11 November 1808

321 - Letter. James Watt (Heathfield) to James Watt jr. (Salford; c/o G.A. Lee). - 05 December 1808

322 - Letter. James Watt (Heathfield) to James Watt jr. (Howey; c/o James Crummer). - 25 March 1809

323 - Letter. James Watt (Heathfield) to James Watt jr. (Howey; c/o James Crummer). - 03 April 1809

324 - Letter. James Watt (Heathfield) to James Watt jr. (Howey; c/o James Crummer). - 05 April 1809

325 - Letter. James Watt (Heathfield) to James Watt jr. (Kington; c/o Post office). - 09 April 1809

326 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 09 May 1809

327 - Letter. James Watt (Heathfield) to A. Weston (London; 38 Fenchurch Street). - 11 May 1809

328 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 15 May 1809

329 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 22 May 1809

330 - Letter. James Watt (Howey; nr. Brecon) to James Watt jr. (London; 13, London Street). - 31 May 1809

331 - Letter. James Watt (Howey; nr. Brecon) to James Watt jr. (London; 13, London Street). - 04 June 1809

332 - Letter. James Watt (Howey; nr. Brecon) to James Watt jr. (Soho). - 10 June 1809

333 - Letter. James Watt (Heathfield) to James Watt jr. (Soho). - 23 July 1809

334 - Letter. James Watt (Liverpool) to James Watt jr. (Soho). - 25 July 1809

335 - Letter. James Watt (Craighead) to James Watt jr. (Soho). - 03 August 1809

336 - Letter. James Watt (Craighead) to James Watt jr. (Soho). - 14 August 1809

337 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 19 August 1809

338 - Letter. James Watt and Ann Watt (Glenarbach) to James Watt jr. (Soho). - 23 August 1809

339 - Letter. James Watt (Glenarbach) to James Watt jr. (Soho). - 30 August 1809

340 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 05 September 1809

341 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 20 September 1809

342 - Letter. Ann Watt (Glasgow) to James Watt jr. (Soho). - 21 September 1809

343 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 29 September 1809

344 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 01 October 1809

345 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 03 October 1809

346 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 09 October 1809

347 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 15 October 1809

348 - Letter. James Watt (Craighead) to James Watt jr. (Soho). - 29 October 1809

349 - Letter. James Watt (Edinburgh) to James Watt jr. (Soho). - 06 November 1809

350 - Receipt. MRB (London) to James Watt jr. (Soho). - 23 March 1810

351 - Letter. James Watt (London; 3 Norfolk Street) to James Watt jr. (Soho). - 02 June 1810

352a - Letter. James Watt and Ann Watt (London) to James Watt jr. (Soho). - 07 June 1810

352b - A transcript of Mr Woodward's statement concerning the exchange of Mr Watt's stock. - 07 June 1810

353 - Letter. James Watt (London) to James Watt jr. (Soho). - 09 June 1810

354 - Letter. James Watt (London) to James Watt jr. (Soho). - 12 June 1810

355 - Letter. Ann Watt (London; 3 Norfolk Street) to James Watt jr. (Soho). - 13 June 1810

356 - Letter. James Watt (London) to James Watt jr. (Soho). - 23 June 1810

357 - Letter. James Watt (London) to James Watt jr. (Soho). - 25 June 1810

358 - Letter. James Watt (London) to James Watt jr. (Soho). - 30 June 1810

359 - Letter. James Watt (London) to James Watt jr. (Soho). - 16 July 1810

360 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 19 July 1810

361 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 21July 1810 - 22 July 1810

362 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 23 July 1810

363 - Letter. Ann Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 23 July 1810

364 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 25 July 1810

365 - Letter. James Watt (Heathfield) to James Watt jr. ('to be delivered when he returns or forwarded to him'). - 28 July 1810

366 - Letter. James Watt (Kington) to James Watt jr. (Soho). - 02 August 1810

367 - Letter. James Watt (Kington) to James Watt jr. (Soho). - 05 August 1810 - 06 August 1810

368 - Letter. James Watt (Howey, Brecon) to James Watt jr. (Soho). - 09 August 1810

369 - Letter. James Watt (Howey) to James Watt jr. (Soho). - 14 August 1810

370 - Letter. James Watt (Kington) to James Watt jr. (Soho). - 20 August 1810

371 - Letter. James Watt (Kington) to James Watt jr. (London; 13 London Street). - 22 August 1810

372 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 26 August 1810

373. . - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 27 August 1810

374 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 29 August 1810

375 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 03 September 1810

376 - Letter. James Watt (Heathfield) to James Watt jr. (Osborne'sHotel, Adelphi). - 05 September 1810

377 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 10 February 1811

378 - Letter. Ann Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 14 February 1811

379 - Letter. James Watt (London; 3, Norfolk Street) to James Watt jr. (Soho). - 15 May 1811

380 - Letter. James Watt (London; 3, Norfolk Street) to James Watt jr. (Soho). - 20 May 1811

381 - Letter. James Watt (London; 3, Norfolk Street) to James Watt jr. (Soho). - 28 May 1811

382 - Letter. James Watt (London; 3, Norfolk Street) to James Watt jr. (Soho). - 29 May 1811

383 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 27 August 1811

384 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 30 August 1811

385 - Letter. James Watt (Craighead) to James Watt jr. (Soho). - 08 September 1811

386 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 17 September 1811

387 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 02 October 1811

388 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 08 October 1811

389 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 16 October 1811

390 - Letter. James Watt (Sweethope) to James Watt jr. (Soho). - 31 October 1811

391 - Letter. James Watt (Edinburgh) to James Watt jr. (Soho). - 10 November 1811

392 - Letter. James Watt (Edinburgh) to James Watt jr. (Soho). - 12 October [docket reads Nov] 1811

393 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 16 March 1812

394 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 22 March 1812

395 - Letter. James Watt (Heathfield) to James Watt jr. (Thornhill). - 25 March 1812

396 - Letter. Robert Muirhead (Heathfield) to James Watt jr. (Thornhill). - 31 March 1812

397 - Letter. James Watt (Heathfield) to James Watt jr. (Rhayader; post office; redirected from Oxford Arms, Kington). - 12 April 1812

398 - Letter. James Watt (Heathfield) to James Watt jr. (Howey Hall, c/o Mr Crummer). - 19 April 1812

399 - Letter. James Watt (Heathfield) to James Watt jr. (Kington; c/o James Davies). - 03 May 1812

400 - Letter. James Watt (Heathfield) to James Watt jr. (Kington; c/o James Davies). - 05 May 1812

401 - Letter. James Watt (London; 3 Norfolk Street) to James Watt jr. (Soho). - 21 May 1812

402 - Letter. James Watt (London) to James Watt jr. (Soho). - 01 June 1812

403 - Letter. James Watt ([London]) to James Watt jr. (Soho). - 08 June 1812

404 - NUMBER NOT USED

405 - Letter. James Watt (London; Norfolk Street) to James Watt jr. (——). - 17 June 1812

406 - Letter. James Watt (London) to James Watt jr. (Soho). - 18 June 1812

407a - Letter. James Watt (London) to James Watt jr.(——). - 25 June 1812

407b - Receipt. Fortnum & Co. to James Watt jr. - 24 June 1812

408 - Letter. James Watt (London) to James Watt jr. (——). - 29 June 1812

409 - Letter. James Watt (London) to James Watt jr. (Soho). - 04 July 1812

410 - Letter. Matthew Robinson Boulton (London) to James Watt jr. (Soho). - 09 July 1812

411 - Letter. James Watt (London) to James Watt jr. (Soho). - 15 July 1812

412 - Letter. James Watt (Heathfield) to James Watt jr. (Doldowlod). - 23 September 1812

413 - Letter. James Watt (Heathfield) to James Watt jr. (Doldowlod). - 02 October 1812

414 - Letter. James Watt (——) to James Watt jr. (Doldowlod). - 03 October 1812

415 - Letter. James Watt (Heathfield) to James Watt jr. (Kington, Herefordshire; c/o James Davies). - 11 October 1812

416 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 28 December 1812

417 - Letter. James Watt (Heathfield) to James Watt jr. (Doldowlod). - 20 March 1813

418 - Letter. James Watt (Heathfield) to James Watt jr. (Doldowlod). - 25 March 1813

419 - Letter. James Watt (Heathfield) to James Watt jr. (Kington; c/o James Crummer). - 26 March 1813

420 - Letter. James Watt (Heathfield) to James Watt jr. (Doldowlod). - 05 April 1813

421 - Letter. James Watt (Heathfield) to James Watt jr. (Kington; c/o post office). - 13 April 1813

422 - Letter. James Watt (Heathfield) to James Watt jr. (Kington; c/o post office). - 18 April 1813

423 - Letter. James Watt (London) to James Watt jr. (Soho). - 29 May 1813

424a - Letter. James Watt (London) to James Watt jr. (Soho). - 01 June 1813

424b - Letter. Reverend James Mylne (Glasgow College) to James Watt (Heathfield). - 23 May 1813

425 - Letter. James Watt (London) to James Watt jr. (Soho). - 02 June 1813

426 - Letter. James Watt (London) to James Watt jr. (Soho). - 15 June 1813

427 - Letter. James Watt (London) to James Watt jr. (Soho). - 23 June 1813

428 - Letter. James Watt (Dumfries) to James Watt jr. (Soho). - 10 August 1813

429 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 15 August 1813

430 - Letter. James Watt (?Glasgow; Grove Mount) to James Watt jr. (Doldowlod; redirected from Soho). - 01 September 1813

431 - Copy Letter. James Watt jr. (Doldowlod) to James Watt [Glasgow]. - 13 September 1813

432 - Letter. James Watt (Glasgow; Endrick bank) to James Watt jr. (Soho). Redirected to Doldowlod, Radnorshire. - 14 September 1813

433 - Letter. James Watt (Glasgow) to James Watt jr. (Doldowlod; redirected from Soho). - 24 September 1813

434 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 04 October 1813

435 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 15 October 1813

436 - Letter. James Watt (Edinburgh) to James Watt jr. (——). - 24 October 1813

437 - Letter. James Watt (Heathfield) to James Watt jr.( ——) (‘London; 13 London Street’, written in pencil). - 16 March 1814

438 - Letter. James Watt (Heathfield) to James Watt jr. (——) (‘London’ written in pencil). - 21 March 1814

439 - Letter. James Watt (London) to James Watt jr. (——). - 15 June 1814

440 - Letter. James Watt (London) to James Watt jr. (——). - 30 June 1814 - 02 July 1814

441 - Letter. James Watt (London) to James Watt jr. (——). - 09 July 1814

442 - Letter. James Watt (London) to James Watt jr. (——). - 12 July 1814

443 - Letter. James Watt (London) to James Watt jr. (Soho). - 18 July 1814

444 - Letter. James Watt (Kington, Herefordshire) to James Watt jr. (Soho). - 26 August 1814

445 - Letter. James Watt (Tenby) to James Watt jr. (Soho). - 30 August 1814

446 - Letter. James Watt (Tenby) to James Watt jr. (Soho). - 02 September 1814

447 - Letter. James Watt (Tenby) to James Watt jr. (Soho). - 08 September 1814

448 - Letter. James Watt (Tenby) to James Watt jr. (Soho). - 18 September 1814

449 - Letter. James Watt (Tenby) to James Watt jr. (Doldowlod). - 23 September 1814

450 - Letter. James Watt (Tenby) to James Watt jr. (——). - 27 September 1814

451 - Letter. James Watt (Tenby) to James Watt jr. (——). - 30 September 1814

452 - Letter. James Watt (——; docket reads Heathfield) to James Watt jr. (——). - November 1814

453 - Letter. James Watt (London; 4, Norfolk Street) to James Watt jr. (——). - 09 June 1815

454 - Letter. James Watt (London; 4, Norfolk Street) to James Watt jr. (Soho). - 16 June 1815

455 - Letter. James Watt (London; 4, Norfolk Street) to James Watt jr. (Soho). - 18 June 1815

456 - Letter. James Watt (London) to James Watt jr. (Soho). - 23 June 1815

457 - Letter. James Watt (London) to James Watt jr. (Soho). - 04 July 1815

458 - Letter. James Watt (London) to James Watt jr. (Soho). - 08 July 1815

459 - Letter. James Watt (London) to James Watt jr. (Soho). - 12 July 1815

460 - Letter. James Watt (Mr Lee's cottage; docket reads Manchester) to James Watt jr. (Soho). - 12 August 1815

461 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 18 August 1815

462 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 27 August 1815

463 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 29 August 1815 - 30 August 1815

464a - Letter. James Watt (Glasgow) to James Watt jr. (Doldowley[sic]; redirected from Soho and Kington). - 06 September 1815

464b - Letter. John Binns [Glasgow] to [James Watt] (——). - 01 September 1815

465 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 16 September 1815 - 17 September 1815

466 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 02 October 1815

467 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 05 October 1815

468a - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 10 October 1815

468b - Letter. David Wardrop & Co. to Boulton & Watt - 09 October 1815

469 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 16 October 1815

470 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 18 October 1815

471 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 22 October 1815

472 - Letter. James Watt (Glasgow) to James Watt jr. (Soho). - 24 October 1815

473 - Letter. James Watt (Edinburgh) to James Watt jr. (——). - 27 October 1815

474 - Letter. James Watt (Edinburgh) to James Watt jr. (Soho). - 01 November 1815

475 - Letter. James Watt (Edinburgh) to James Watt jr. (Soho). - 04 November 1815

476 - Letter. James Watt (Edinburgh) to James Watt jr. (Soho). - 07 November 1815

477 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 17 December 1815

478 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 21 December 1815

479 - Letter. James Watt (Heathfield) to James Watt jr. (London; Norfolk Hotel, Surrey Street.). - 24 December 1815

480 - Letter. James Watt (Heathfield) to James Watt jr. (London; Norfolk Hotel, Surrey Street.). - 28 December 1815

481 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 22 February 1816

482 - Letter. James Watt (London; 4 Norfolk Street) to James Watt jr. (——). - 04 June 1816

483 - Letter. James Watt (London; 4 Norfolk Street) to James Watt jr. (——). - 07 June 1816

484 - Letter. James Watt (London) to James Watt jr. (Soho). - 17 June 1816 - 18 June 1816

485 - Letter. James Watt (London) to James Watt jr. (Soho). - 27 June 1816

486 - Letter. James Watt (London) to James Watt jr. (Chipping Norton, Chapel House Inn. Enstone deleted). - 29 June 1816

487 - Letter. James Watt (London; the Mint) to James Watt jr., or in his absence to M.R.Boulton (Chapel House Inn, near Enstone). - 30 June 1816

488 - Letter. James Watt (London} to James Watt jr. to James Watt jr., or in his absence to M.R.Boulton (Chapel House Inn, near Enstone). - 01 July 1816

489 - Letter. James Watt (London) to James Watt jr. (Soho). - 03 July 1816

490 - Letter. James Watt (London) to James Watt jr. (Soho). - 06 July 1816

491 - Letter. James Watt (London) to James Watt jr. (Soho). - 12 July 1816

492 - Letter. James Watt (London) to James Watt jr. (Soho). - 17 July 1816

493 - Letter. James Watt (London) to James Watt jr. (Soho). - 20 July 1816

494 - Letter. James Watt (Heathfield) to James Watt jr. (Soho). - 31 July 1816

495 - Letter. Olaus Warberg (Copenhagen) to James Watt jr. (Soho). - 01 August 1816

496a - Letter. James Watt (——) to James Watt jr. (Soho). - 20 August 1816

496b - Letter. Dr. Brewster (Edinburgh) to James Watt (Heathfield). - 12 August 1816

496c - Copy press Letter. James Watt (Heathfield) to Dr. Brewster (——). - 19 August 1816

497 - Letter. James Watt (Tenby) to James Watt jr. (Soho). - 24 August 1816

498 - Letter. James Watt (Tenby) to James Watt jr. (London; 13 London Street). - 07 September 1816

499 - Letter. James Watt (Tenby) to James Watt jr. (Brussels; c/o Messrs. D. Danoot & Son). - 16 September 1816

500 - Letter. James Watt (Heathfield) to James Watt jr. (Paris; c/o Messrs. Perregoux, Bankers and Hotel du Libre, Rue du Helder). - 14 October 1816

501 - Letter. James Watt [Heathfield] to James Watt jr. (Soho). - 20 November 1816

502 - Letter. James Watt [Heathfield] to James Watt jr. (——). - 21 November 1816

503 - Letter. James Watt [Heathfield] to James Watt jr. (Glasgow; c/o Robert Muirhead, Gordon Street) - 03 December 1816 - 04 December 1816

504 - Letter. James Watt [Heathfield] to James Watt jr. (Edinburgh; Post Office. redirected from Glasgow; c/o Robert Muirhead, Gordon Street). - 07 December 1816

505 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 06 April 1817

506 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 07 April 1817

507 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 14 April 1817

508 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 15 April 1817

509 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 17 April 1817

510 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 21 April 1817

511 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 30 April 1817

512 - Letter. James Watt (London; 3 Norfolk Street) to James Watt jr. (——). - 12 June 1817

513 - Letter. James Watt (London; 4 Norfolk Street) to James Watt jr. (——). - 21 June 1817

514 - Letter. James Watt jr. (Soho) to James Watt (London; 3 Norfolk Street). - 22 June 1817

515 - Letter. James Watt (London) to James Watt jr. (——). - 27 June 1817

516 - Letter. James Watt jr. (Soho) to James Watt (London; 3 Norfolk Street). - 01 July 1817

517 - Letter. James Watt (London) to James Watt jr. (Soho). - 04 July 1817

518a - Letter. James Watt (Heathfield) to James Watt jr. (London; Norfolk Hotel). - 24 July 1817

518b - Copy press Letter. James Watt (Heathfield) to James Watt jr. (——). - 24 July 1817

519 - Letter. James Watt (Heathfield) to James Watt jr. (London; Norfolk Hotel). - 27 July 1817

520 - Letter. Ann Watt (Heathfield) to James Watt jr. (London;13 London Street). - 31 July 1817

521 - Copy press letter. James Watt jr. (London) to [Ann Watt] (——). - 02 August 1817

522 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 03 August 1817 - 04 August 1817

523 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 05 August 1817

524 - Letter. James Watt (Glasgow) to James Watt jr. (London; 13 London Street). - 14 August 1817

525 - Letter. James Watt (Glasgow) to James Watt jr. (London; 13 London Street). - 19 August 1817

526 - Copy press Letter. James Watt jr. (London) to James Watt (——)[Glasgow]. - 23 August 1817

527 - Letter. James Watt (Croy; Dunbartonshire) to James Watt jr. (London; 13 London Street). - 28 August 1817

528 - Draft Letter. James Watt jr. (London) to James Watt (——). - 04 September 1817

529 - Letter. James Watt (Glasgow) to James Watt jr. (——). - 08 September 1817

530 - Letter. James Watt (Glasgow) to James Watt jr. (London; 13 London Street). - 13 September 1817

531 - Draft Letter. James Watt jr. (London) to James Watt (——). - 15 September 1817

532 - Letter. James Watt (Glasgow; Aikenhead) to James Watt jr. (London; 13 London Street). - 19 September 1817

533 - Copy letter. James Watt jr. (Soho) to James Watt (Glasgow; Cochrane Street, c/o Miss McGrigor). - 19 September 1817

534 - Letter. James Watt (Glasgow) to James Watt jr. (Margate; Mr Wright's York Hotel). - 04 October 1817

535 - Letter. James Watt (Glasgow) to James Watt jr. (Margate; York Hotel, Mr Wright's. redirected from London). - 05 October 1817

536 - Letter. James Watt (Glasgow) to James Watt jr. (Rotterdam; c/o Messrs. Collings & Mingay. Redirected from London). - 25 October 1817

537 - Letter. James Watt (Glasgow) to James Watt jr. (Rotterdam; c/o Messrs. Collings & Mingay. Redirected from London). - 31 October 1817

538 - Letter. James Watt (Glasgow) to James Watt jr. (Rotterdam; c/o Messrs. Collings & Mingay.Redirected from London). - 12 November 1817

539 - Letter. James Watt (Heathfield) to James Watt jr. (Rotterdam; c/o Messrs. Collings & Mingay). - 14 December 1817

540 - Letter. James Watt (Glasgow) to James Watt jr. (Rotterdam; c/o Messrs. Collings & Mingay). - 24 December 1817 - 25 December 1817

541 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 01 January 1818

542 - Letter. James Watt (Heathfield) to James Watt jr. (Rotterdam; c/o Messrs. Collings & Mingay). - 08 January 1818

543 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 12 January 1818

544a - Letter. James Watt (Heathfield) to James Watt jr. (Rotterdam; c/o Messrs. Collings & Mingay) - 19 January 1818

545 - Letter. James Watt (Heathfield) to James Watt jr. (Rotterdam; c/o Messrs. Collings & Mingay). - 26 January 1818

546 - Copy Letter. James Watt jr. (Rotterdam) to James Watt (——). - 01 February 1818

547 - Letter. James Watt (Heathfield) to James Watt jr. (Rotterdam; c/o Messrs. Collings & Mingay). - 09 February 1818

548 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 16 February 1818

549 - Letter. James Watt (Heathfield) to James Watt jr. (to be forwarded). - 23 February 1818

550 - Letter. James Watt (Heathfield) to James Watt jr. (Rotterdam; c/o Messrs. Collings & Mingay). - 02 March 1818

551 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 09 March 1818

552 - Letter. James Watt (Heathfield) to James Watt jr.(——). - 12 March 1818

553 - Copy Letter. James Watt jr. (London) to James Watt (——). - 16 March 1818

554 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 19 March 1818

555 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 22 March 1818

556 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 29 March 1818

557 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 01 April 1818

558 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 03 April 1818

559 - Letter. Ann Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 05 April 1818

560 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 06 April 1818

561a - Letter. James Watt (Heathfield) to James Watt jr.(——). - 09 April 1818

561b - Letter. Ann Boulton (Soho) to James Watt (——). - nd. [1818]

562 - Letter. James Watt (Heathfield) to James Watt jr. (London; 13 London Street). - 09 April 1818

563 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 13 April 1818

564 - Letter. James Watt (Heathfield) to James Watt jr. (London; Norfolk Hotel). - 17 April 1818

565 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 20 April 1818

566 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 23 April 1818

567 - Letter. James Watt (Heathfield) to James Watt jr. (London; Norfolk Hotel). - 26 April 1818

568 - Letter. James Watt (Heathfield) to James Watt jr. (London; Norfolk Hotel). - 27 April 1818

569 - Letter. James Watt (Heathfield) to James Watt jr. (——). - 30 April 1818

570 - Letter. James Watt (Heathfield) to James Watt jr. (London; Norfolk Hotel). - 10 May 1818

571 - Letter. James Watt (Heathfield) to James Watt jr. (London; Norfolk Hotel). - 13 May 1818

572 - Letter. James Watt (London; Norfolk Street) to James Watt jr. (London; Norfolk Hotel). - 30 July [1818]

573 - Letter. James Watt (Heathfield) to James Watt jr. (London; Norfolk Hotel). - 04 August 1818

574 - Letter. James Watt [Heathfield] to James Watt jr. (London; Norfolk Hotel). - 07 August 1818

575 - Letter. James Watt (Heathfield) to James Watt jr. (London; Norfolk Hotel). - 09 August 1818

576 - Letter. James Watt (Heathfield) to James Watt jr. (London; Norfolk Hotel). - 13 August 1818

577a - Letter. James Watt (Heathfield) to James Watt jr. (London; Norfolk Hotel). - 17 August 1818

577b - Letter. Margaret Miller (Glasgow) to James Watt (Heathfield). - 10 August 1818

577c - Letter. George A. Lee (Manchester) to James Watt (——). - 15 August 1818

578 - Letter. James Watt (Tenby) to James Watt jr. (London; 13 London Street). - 09 September 1818

579 - Letter. James Watt (Tenby) to James Watt jr. (Soho). - 22 September 1818

580 - Letter. James Watt (Tenby) to James Watt jr. (Soho). - 29 September 1818

581 - Letter. James Watt (Tenby) to James Watt jr. (Soho). - 06 October 1818

582 - Letter. James Watt (Tenby) to James Watt jr. (Soho). - 08 October 1818

583 - Letter. James Watt (Tenby) to James Watt jr. (——). - 10 October 1818

584 - Letter. James Watt [docket reads Heathfield] to James Watt jr. (Thornhill). - 22 November 1819

585 - Letter. James Watt (Heathfield) to James Watt jr. (Kington; c/o James Davies). - 11 December 1818

586 - Letter. James Watt (Heathfield) to James Watt jr. (Doldowlod). - 16 December 1818

587 - Letter. James Watt (Heathfield) to James Watt jr. (Doldowlod). - 20 December 1818

588 - Letter. James Watt (Heathfield) to James Watt jr. (Doldowlod). - 25 December 1818

589 - Letter. James Watt (Heathfield) to James Watt jr. (Doldowlod). - 27 December 1818

590 - Letter. James Watt (Heathfield) to James Watt jr. (Doldowlod). - 31 December 1818

2 - Letters to James Watt jr. from various correspondents - 1787 - 1898

3 - Letters from George Rennie about the death of John Rennie etc. - 1821 - 1823

4 - Letters from various persons about a memoir of Humphry Davy - 1829 - 1831

5 - Letters from various persons about Charles Henry's memoir of Peter Ewart - 1843 - 1844

2 - Outgoing correspondence of James Watt jr. - 1792 - 1821

2 - Notebooks of James Watt jr. - 1787 - 1846

3 - Personal papers of James Watt jr. - 1808 - 1848

4 - Legal documents - 1637 - 1841

5 - Drawings by James Watt jr. - 1789 - 1846

6 - Papers of the antiquarian, William Hamper, relating to the parish and manor of Aston - 13th cent. - 1839

7 - Miscellaneous printed items which belonged to James Watt jr. - 1799 - 1840

7 - Records of Gregory Watt (1777 - 1804) - 1792 - 1804

8 - Miscellaneous records of the Watt family - c. 1754 - 1873

9 - Later additions to the records - 1672 - 1848

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