| Description | This first volume contains hand-written transcripts and abstracts copied in 1798 and 1799 from the original letter books, which had been badly damaged by water. These water-damaged books were disposed of once the copies had been made. This period saw the introduction of the copy press, so unfortunately the earliest Boulton & Watt business press copies have been destroyed. No. Description Page 1. Memorandum.(i) The memorandum reads as follows: “The letters contained in this Book were transcribed by W. Creighton, T. Wilson & Gregory Watt in the years 1798 & 1799 from the old Copy Books, which having lain in a closet exposed to the Rain for some years, were obliterated in parts. These parts have been left blank in the present copies. The letters up to April 1779 were transcript copies; from that time forward, they were taken with the Press and pasted in the Drying Books themselves. This occasioned a multiplicity of small books, one of which containing the letters from 12 Nov. 1799 to 13 Jan. 1780 appears to be lost. The following is an enumeration of the Old Copy Book, from whence the present Book is transcribed. — No. 1 Soho Letters from 31 Jan. 1778 to 20 May 1779 Pages 1 to 59 & 96 to 190 No. 2 Cornish Letters from Jun. 1778 to 28 Dec. 1778 61 to 96 No. 3 Soho Letters from 23 May 1779 to 16 Jul. 1779 190 to 203 NB. These were pasted in the old book and are here copied according to the order of the subjects & not of the dates. No. 4 Soho Letters from 24 Jul. 1779 to 25 Sep. 1779 to 314 No. 5 Soho Letters from 29 Sep. 1779 to 12 Nov. 1779 315 to 324 No. 6 Soho Letters from 12 Nov. 1779 to 13 Jan. 1780 are wanting as also Cornish letters up to Mr. Watt’s return 27 Feb. 1780 No. 7 Soho Letters from 13 Jan. 1780 to 19 Jun. 1780 402 to 445” 2. Index. (iii) 3-92. Soho Letters from 31 Jan. 1778 to 20 May 1779 3. James Watt (Birmingham) to Jonathan Hornblower (Chacewater). 31 Jan. 1778. 1 4. James Watt [Birmingham] to Edward Salmon [Hassall]. 31 Jan. 1778. 1 5. James Watt [Birmingham] to Thomas Dudley [Chacewater]. 31 Jan. 1778. 1 6. — to John Edwards (Hayle). 2 Feb. 1778. 1 7. James Watt [Birmingham] to Gilbert Meason (Edinburgh). 2 Feb. 1778. 1 8. James Watt [Birmingham] to J. de Magellan [London]. 2 Feb. 1778. 2 9. — to Thomas Dudley [Chacewater]. 11 Mar. 1778. 2 10. Logan Henderson [Soho] to Wyke & Green (Liverpool). 12 Mar. 1778. 2 11. — to John Rothwell (Shadwell). 13 Mar. 1778 2 12. — to John Bligh (Chelsea Water Works Office). 13 Mar. 1778. 3 13. — to Mr. — Curtis, Stationer (Fleet St., London). 13 Mar. 1778. 3 14. Matthew Boulton [Soho] to John Smeaton [London]. 14 Mar. 1778. 3 15. James Watt [Birmingham] to Gilbert Meason [Edinburgh]. 18 Mar. 1778. 6 16. James Watt [Birmingham] to John Smeaton [London]. 18 Mar. 1778. 6 17. James Watt [Birmingham] to Jukes Coulson [London]. 19 Mar. 1778. 6 18. James Watt [Birmingham] to William Forbes [London]. 23 Mar. 1778. 7 19. James Watt [Birmingham] to J. de Magellan [London]. 24 Mar. 1778. 7 20. James Watt [Birmingham] to John Turner [Bersham]. 29 Mar. 1778. 9 21. Boulton & Watt (Birmingham) – order to Spedding Hicks & Co. (Whitehaven). 30 Mar. 1778. 9 22. James Watt [Birmingham] to Thomas Dudley [Chacewater]. — Mar./Apr. 1778. 10 23. James Watt [Birmingham] to John Turner (Bersham). 4 Apr. 1778. 10 24. James Watt [Birmingham] to John Smeaton [London]. 4 Apr. 1778. 10 25. Logan Henderson (Birmingham) to Gilbert Meason (Edinburgh). 4 Apr. 1778. 12 26. James Watt (Birmingham) to Gilbert Meason (Edinburgh). — Apr. 1778. 12 The transcript mis-dates this letter as 4 Apr. The letter contains a sketch of the method of constructing a wall to protect the injection cistern. 27. James Watt (Birmingham) to William Forbes (London). 6 Apr. 1778. 15 28. James Watt (Birmingham) to John Rothwell (Shadwell). 6 Apr. 1778. 15 29. Logan Henderson (Birmingham) to Wyke & Green (Liverpool). 8 Apr. 1778. 15 30. — to Jukes Coulson [London]. 9 Apr. 1778. 15 31. James Watt [Birmingham] to Peter Coleville [Torryburn]. 9 Apr. 1778. 15 32. James Watt [Birmingham] to Edward Salmon [Hassall]. 9 Apr. 1778. 16 33. James Watt [Birmingham] to John Turner [Bersham]. 10 Apr. 1778. 17 34. James Watt (Birmingham) to William Chapman [Newcastle]. 10 Apr. 1778. 17 35. James Watt (Birmingham) to Blewet & Co. (Marazion). 10 Apr. 1778. 18 36. James Watt [Birmingham] to John Turner [Bersham]. 11 Apr. 1778. 18 37. James Watt [Birmingham] to Mayson Wright (Hull). 16 Apr. 1778. 18 38. Matthew Boulton (Soho) to Edward Salmon (Hassall). 11 Apr. 1778. 20 39. Matthew Boulton (Birmingham) to John Wilkinson [Broseley]. 16 Apr. 1778. 20 40. Matthew Boulton (Soho) to Edward Salmon (Hassall). 11 Apr. 1778. 20 41. Memorandum. Proposals by M. B. & J. W. of Birmingham to Mr. Joseph Jary, Concessionaire du Roi pour les mines du Nord près de Nantes en Bretagne. 21 42. Memorandum (in French). Observations sur le Memoire des Messieurs Boulton et Watt (de Monsieur Jary). 22 43. James Watt [Birmingham] to John Turner [Bersham]. 27 Apr. 1778. 23 44. Matthew Boulton [Soho] to John Rothwell [Shadwell]. 22 Apr. 1778. 24 45. James Watt [Birmingham] to Thomas Dudley [Wheal Union]. 22 Apr. 1778. 24 46. James Watt [Birmingham] to John Turner [Bersham]. [28 Apr. 1778?] 24 The letter includes sketches of an air pump bucket and valve. 47. James Watt (London) to J. de Magellan [London]. 2 May 1778. 25 48. James Watt (London) to Gilbert Meason [Edinburgh]. 5 May 1778. 26 49. James Watt (London) to Mayson Wright (Hull). 8 May 1778. 28 50. James Watt (London) to Mayson Wright [Hull]. 17 May 1778. 29 51. James Watt [London] to William Chapman & Co. [Newcastle]. 17 May 1778. 29 52. Matthew Boulton [?] [London] to J. de Magellan [London]. 22 May 1778. 29 This letter is transcribed as being by Watt, but Boulton’s letter to Le Comte d’Heronville suggests that he wrote this letter too. 53. James Watt (London) to Mr. — Pengree (—). 22 May 1778. 30 54. Matthew Boulton [London] to Le Comte d’Heronville (—). — May/Jun. 1778. 30 55. Matthew Boulton (London) to Gilbert Meason (Edinburgh). 13 Jun. 1778. 32 56. Matthew Boulton (London) to Mayson Wright (Hull). 10 Jun. 1778. 34 57. Matthew Boulton (Soho) to John Scott (Shrewsbury). 18 Jul. 1778. 35 58. Matthew Boulton (Soho) to Gilbert Meason [Edinburgh]. 23 Jul. 1778. 36 59. Matthew Boulton (Soho) to William & John Chapman [Newcastle]. 24 Jul. 1778. 37 60. Matthew Boulton (Soho) to Mayson Wright (Hull). 9 Jul. 1778. 37 The date of this letter may be erroneous, as Boulton was in London on 9 Jul. 61. James Watt (Redruth) to Richard Reynolds (near Ketley Iron Furnace). 20 Jul. 1778. 38 The letter contains sketches of an iron cross for supporting pumps, and steam pipes. 62. Matthew Boulton [Soho] to John Turner (Bersham). 8 Aug. 1778. 39 63. Matthew Boulton (Soho) to John Scott [Shrewsbury]. 8 Aug. 1778. 39 64. Matthew Boulton (Soho) to the Proprietors of Shadwell Water Works [London]. 11 Aug. 1778. 40 65. Matthew Boulton (Soho) to the Richmond Company [Richmond]. 10 Aug. 1778. 41 66. Matthew Boulton (Soho) to the Revd. Charles Newling [Westbury]. 22 Aug. 1778. 42 67. Matthew Boulton (Soho) to John Rothwell [Shadwell]. 22 Aug. 1778. 42 68. Matthew Boulton (Soho) to Matthew Wasbrough (Bristol). 26 Aug. 1778. 44 69. Matthew Boulton (Soho) to J. D. H. van Liender [Rotterdam]. 29 Aug. 1778. 44 70. Matthew Boulton (Soho) to John Stewart (65 Cannon St., London). 26 Aug. 1778. 45 71. Matthew Boulton (Soho) to Clement Smith (Richmond). 31 Aug. 1778. 45 72. William Playfair (Soho) to Gilbert Meason [Edinburgh]. 4 Sep. 1778. 46 73. Matthew Boulton (Soho) to Gilbert Meason [Edinburgh]. 26 Sep. 1778. 46 74. Matthew Boulton (Soho) to John Turner (Bersham). 28 Sep. 1778. 47 75. William Playfair [Soho] to John Hall [?] (Ketley). 30 Sep. 1778. 47 76. Matthew Boulton (Soho) to Mr. — Blythe [John Bligh?] (Chelsea Water Office). 30 Sep. 1778. 47 77. Matthew Boulton [Soho] to Mayson Wright (Hull). [30 Sep. 1778.] 47 78. Matthew Boulton (Soho) to John Scott [Shrewsbury]. 1 Oct. 1778. 48 79. William Playfair (Soho) to John Turner (Bersham). 1 Oct. 1778. 50 80. William Playfair (Soho) to Jukes Coulson (London). 1 Oct. 1778. 50 81. Matthew Boulton [Soho] to William Hitchcock (Wollaston). 1 Oct. 1778. 50 82. Matthew Boulton [Soho] to John Scott (Shrewsbury). 4 Oct. 1778. 52 83. Memorandum. Invoices sent to Mr. Henderson (Byker engine goods), Wright & Jessons, M. Wright. 5 & 6 Oct. 1778. 52 84. William Playfair (Soho) to Gilbert Meason [Edinburgh]. 14 Oct. 1778. 52 85. William Playfair (Soho) to Gilbert Meason [Edinburgh]. 21 Oct. 1778. 52 86. William Playfair (Soho) to John Bligh (Chelsea Water Works). 26 Oct. 1778. 53 87. Boulton & Watt (Redruth) to John Houghton (Clerk to the Birmingham Canal Co.). 23 Oct. 1778. 53 88. William Playfair [Soho] to John Turner [Bersham]. 31 Oct. 1778. 54 The letter is transcribed as having been written at Redruth. 89. James Keir (Soho) to Gilbert Meason [Edinburgh]. 13 Nov. 1778. 55 90. Matthew Boulton (Soho) to John Morris [Swansea]. 28 Dec. 1778. 55 91. Matthew Boulton (Soho) to John Wilkinson [Bersham]. 27 Dec. 1778. 57 92. Matthew Boulton (Soho) to Mr. — Hanley (—). 28 Dec. 1778. 59 93-151. Cornish Letters from Jun. 1778 to 28 Dec. 1778 93. James Watt [Redruth] to Zaccheus Walker (Newhall, Birmingham). 19 Jun. 1778. 61 94. James Watt [Redruth] to Logan Henderson [Soho]. 18 Jun. 1778. 62 95. Memorandum. James Watt [Redruth] to Matthew Boulton [Soho]. 18 Jun. 1778. 62 96. James Watt [Redruth] to Logan Henderson [Soho]. 20 Jun. 1778. 63 97. James Watt [Redruth] to Mayson Wright (Hull). 20 Jun. 1778. 63 98. James Watt [Redruth] to Mayson Wright (Hull). 24 Jun. 1778. 63 The letter includes a sketch of a clack. 99. James Watt [Redruth] to Matthew Boulton [Soho]. 27 Jun. 1778. 65 100. James Watt [Redruth] to Matthew Boulton [Soho]. 20 Jul. 1778. 65 101. James Watt [Redruth] to Richard Reynolds (Ketley). 20 Jul. 1778. 65 The letter includes a sketch of an iron cross for supporting pumps. 102. James Watt [Redruth] to Matthew Boulton [Soho]. 22 Jul. 1778. 66 103. James Watt [Redruth] to Jukes Coulson [London]. 27 Jul. 1778. 66 104. James Watt [Redruth] to John Wilkinson [Broseley]. 27 Jul. 1778. 67 105. Memorandum. James Watt [Redruth] to Matthew Boulton [Soho]. 27 Jul. 1778. 67 106. Memorandum. James Watt [Redruth] to Matthew Boulton [Soho]. 1 Aug. 1778. 67 107. James Watt [Redruth] to Matthew Boulton [Soho]. 3 Aug. 1778. 67 108. James Watt [Redruth] to Matthew Boulton [Soho]. 6 Aug. 1778. 67 109. James Watt [Redruth] to Boulton & Fothergill [Soho]. 8 Aug. 1778. 68 110. James Watt [Redruth] to Matthew Boulton [Soho]. 13 Aug. 1778. 68 111. James Watt [Redruth] to Gilbert Meason [Edinburgh]. 22 Aug. 1778. 69 112. James Watt [Redruth] to Matthew Boulton [Soho]. 22 Aug. 1778. 69 113. Memoranda: 70 “Sent off general directions for putting engines together.” 24 Aug. 1778. James Watt [Redruth] to Matthew Boulton [Soho]. 27 Aug. 1778. James Watt [Redruth] to Logan Henderson [Soho]. 27 Aug. 1778. James Watt [Redruth] to John James [Bristol]. 28 Aug. 1778. 114. James Watt [Redruth] to Matthew Boulton [Soho]. 29 Aug. 1778. 70 115. James Watt [Redruth] to Logan Henderson [Soho]. 29 Aug. 1778. 71 116. James Watt [Redruth] to Logan Henderson [Soho]. 2 Sep. 1778. 71 117. James Watt [Redruth] to Matthew Boulton [Soho]. 2 Sep. 1778. 71 118. James Watt [Redruth] to Matthew Boulton [London]. 6 Sep. 1778. 72 119. James Watt [Redruth] to Matthew Boulton [London]. 12 Sep. 1778. 73 120. James Watt [Redruth] to Logan Henderson [Soho]. 12 Sep. 1778. 73 121. Memorandum. Proposal to Poldice Adventurers. 13 Sep. 1778. 74 By James Watt. Copy sent to Matthew Boulton on 16 Sep. 1778. 122. James Watt [Redruth] to Matthew Boulton [Soho?]. 16 Sep. 1778. 75 123. Memorandum. Total weight of goods sent from Bersham and amount charged by Capt. Williams. 76 By James Watt. Does not state who the goods were for. 124. James Watt [Redruth] to Gilbert Meason [Edinburgh]. 27 Sep. 1778. 76 Letter continued on 28 Sep. 125. James Watt [Redruth] to Matthew Boulton [Soho]. 28 Sep. 1778. 77 126. James Watt [Redruth] to Zaccheus Walker [Soho]. 2 Oct. 1778. 77 127. James Watt [Redruth] to John Turner [Bersham]. [2 Oct. 1778.] 77 128. James Watt [Redruth] to John Turner [Bersham]. 5 Oct. 1778. 78 129. James Watt [Redruth] to Logan Henderson (Hull). 7 Oct. 1778. 78 130. Memorandum. Writing upon Drawing of regulator for Poldice. — Oct. 1778. 78 By James Watt. 131. James Watt [Redruth] to James Keir (Soho). 12 Oct. 1778. 79 132. Matthew Boulton (Redruth) to J. de Magellan (12 Nevill’s Court, Fetter Lane, London). 12 Oct. 1778. 79 133. Matthew Boulton [Redruth] to Joseph Jary (—). 12 Oct. 1778. 80 134. Matthew Boulton (Redruth) to J. de Magellan [London]. 16 Oct. 1778. 81 135. Boulton & Watt (Redruth) to Le Comte d’Heronville [Paris]. 16 Oct. 1778. 82 136. Boulton & Watt [Redruth] to Le Comte d’Heronville [Paris]. 20 Oct. 1778. 84 137. Matthew Boulton [Redruth] to ? (Richmond). — Oct. 1778. 85 138. James Watt (Redruth) to John Turner [Bersham]. 30 Oct. 1778. 87 139. James Watt [Redruth] to James Keir [Soho]. 5 Nov. 1778. 87 140. Memorandum. James Watt [Redruth] to John Turner [Bersham]. 5 Nov. 1778. 88 141. James Watt [Redruth] to John Wilkinson [Wilson House]. 7 Nov. 1778. 88 142. Memorandum. James Watt [Redruth] to Gilbert Meason [Edinburgh]. — Nov. 1778. 89 143. James Watt [Redruth] to John Turner [Bersham]. 20 Nov. 1778. 89 144. James Watt [Redruth] to William Harris (Camborne). 28 Nov. 1778. 90 145. Memorandum. James Watt [Redruth] to Jacques Constantin Perier [London]. 28 Nov. 1778. 92 146. Memoranda: 92 James Watt [Redruth] to Joseph Jary (—). 28 Nov. 1778. James Watt [Redruth] to Le Comte d’Heronville [Paris]. 28 Nov. 1778. 147. James Watt [Redruth] to Jabez Hornblower [Poldice]. 3 Dec. 1778. 92 148. “Mr. Smeaton’s Paper on Chacewater – Copy of Mr. Smeaton’s calculations respecting Chacewater”. 92 Original by John Smeaton, copied by James Watt. 149. James Watt [Redruth] to John Turner [Bersham]. 19 Dec. 1778. 95 150. James Watt [Redruth] to John Turner [Bersham]. 28 Dec. 1778. 95 151. James Watt [Redruth] to Jukes Coulson [London]. 28 Dec. 1778. 96 152-504. Soho Letters 1 Jan.—12 Nov. 1779. The letters are in roughly chronological order, apart from those between 23 May 1779 and 16 Jul. 1779, which the memorandum at the start of the book notes “… were pasted in the old book and are here copied according to the order of the subjects & not of the dates.” 152. Matthew Boulton (Soho) to J. de Magellan [London]. Circa 1 Jan. 1779. 96 153. Matthew Boulton [Soho] to the Rev. John Fernyhough (—). 1 Jan. 1778. 99 154. Boulton & Watt [Soho] to Le Comte d’Heronville [Paris]. 9 [?] Jan. 1779. [In French.] 102 155. Memorandum. “Calcul mentionné ci dessus.” Jan. 1779. [In French.] 105 Copy of calculations on the Paris Water Works sent to Le Comte d’Heronville and Jacques Constantin Perier. 156. Memorandum. Proposals made to Mr. Perier by Boulton & Watt. Jan. 1779. 106 157. Memorandum. “Propositions faîtes à Monsieur Perier par Messieurs Boulton & Watt.” Jan. 1779. [In French.] 108 French translation of no. 156 above. 158. James Watt [Birmingham] to Joseph Jary [Nantes?]. 10 Jan. 1779. 110 159. James Watt [Birmingham] to Jacques Constantin Perier (35 Suffolk St., London). 15 Jan. 1779. 111 160. James Watt [Birmingham] to John Wilkinson [Broseley]. 15 Jan. 1779. 111 161. James Watt [Birmingham] to Jonathan [?] Hornblower (Chacewater). 16 Jan. 1779. 111 162. James Watt [Birmingham] to John Turner (Bersham). 17 Jan. 1779. 112 163. James Watt [Birmingham] to — Whieldon (Fenton). 20 Jan. 1779. 113 164. Memorandum. Order for Messrs. Spedding Hicks & Co. 20 Jan. 1779. 114 By James Watt. Order for parts for Jary. 165. James Watt [Birmingham] to John Scott (Shrewsbury). 20 Jan. 1779. 114 166. James Watt [Birmingham] to William Phillips (Redruth). 20 Jan. 1779. 115 167. James Watt [Birmingham] to Thomas Fenton (Rothwell Haigh). 22 Jan. 1779. 115 168. James Watt [Birmingham] to Jacques Constantin Perier (London). 25 Jan. 1779. 116 169. James Watt [Birmingham] to Mons. Le Camus de Limare (Paris). 26 Jan. 1779. 118 170. James Watt [Birmingham] to Thomas Wilson (Chacewater). 26 Jan. 1779. 119 171. James Watt [Birmingham] to John Turner (Bersham). 27 Jan. 1779. 119 172. James Watt [Birmingham] to Joseph Jary [Nantes]. 27 Jan. 1779. 120 173. James Watt [Birmingham] to Nicholas Ryder (Marston Forge). 27 Jan. 1779. 120 Spelt here as “Rider”. 174. James Watt [Birmingham] to Mr. — Dearman [Birmingham]. 29 Jan. 1779. 120 175. James Watt [Birmingham] to Mr. — Chapman (Birmingham). 28 Jan. 1779. 120 176. James Watt [Birmingham] to John Turner [Bersham]. 30 Jan. 1779. 121 178. James Watt [Birmingham] to John Turner [Bersham]. 1 Feb. 1779. 121 178. James Watt [Birmingham] to Thomas Wilson [Chacewater]. 2 Feb. 1779. 122 179. James Watt [Birmingham] to John Turner [Bersham]. 2 Feb. 1779. 123 180. Logan Henderson [Birmingham] to Jukes Coulson [London]. 2 Feb. 1779. 123 181. Logan Henderson [Birmingham] to Edward Brown (Northumberland). 5 Feb. 1779. 123 182. James Watt [Birmingham] to Jabez Hornblower (Donnington Wood Colliery). 5 Feb. 1779. 123 183. Logan Henderson [Birmingham] to Dearman & Co. [Birmingham]. 12 Feb. 1779. 124 184. James Watt [Birmingham] to John Turner [Bersham]. 12 Feb. 1779. 124 185. James Watt [Birmingham] to Joseph Jary [Nantes]. 12 Feb. 1779. 124 186. James Watt [Birmingham] to Nicholas Ryder (Marston Forge). 12 Feb. 1779. 125 Spelt here as “Rider”. 187. James Watt [Birmingham] to Jonathan Hornblower [Chacewater]. 13 Feb. 1779. 125 188. Logan Henderson [Birmingham] to Jabez Hornblower (Donnington Wood). 13 Feb. 1779. 126 189. James Watt [Birmingham] to John Turner [Bersham]. 14 Feb. 1779. 127 190. James Watt [Birmingham] to Thomas Wilson [Chacewater]. 14 Feb. 1779. 127 191. James Watt [Birmingham] to William Harris (Camborne). 16 Feb. 1779. 128 192. Logan Henderson [Birmingham] to Mayson Wright (Hull). — Feb. 1779. 128 193. James Watt [Birmingham] to George Taylor (Bedworth). 22 Feb. 1779. 128 194. Matthew Boulton [Soho] to Edward Brown (Denton). 22 Feb. 1779. 129 195. James Watt [Birmingham] to John Turner [Bersham]. 28 Feb. 1779. 129 196. Logan Henderson [Birmingham] to John Scott (Shrewsbury). 28 Feb. 1779. 130 The letter contains a sketch of a steam pipe for Malehurst. 197. James Watt (Birmingham) to John Hall [Wren’s Nest]. 1 Mar. 1779. 130 198. James Watt (Birmingham) to Jabez Hornblower (Donnington). 1 Mar 1779. 130 199. James Watt [Birmingham] to Gilbert Meason [Edinburgh]. 1 Mar. 1779. 131 200. James Watt [Birmingham] to Gilbert Hamilton (Glasgow). 2 Mar. 1779 [?]. 132 201. James Watt [Birmingham] to George Simmons (Gwennap, near Truro). 3 Mar. 1779. 132 202. James Watt [Birmingham] to Jabez Hornblower [Donnington Wood]. 5 Mar. 1779. 133 203. Matthew Boulton [Soho] to Matthew Wasbrough (Bristol). 5 Mar. 1779 [?]. 133 The transcript notes this letter as being written by Watt. However the author writes “[I] have been 3 times at London since Xmas upon business…” Watt had not been in London at all by this time in 1779. The reading of the date may also be incorrect as Boulton was at Bedworth Colliery on 5 Mar. 1779. 204. Memorandum. Mr. Jary – Directions for Making the Boiler. 134 The memorandum is by James Watt, and includes a sketch of overlapping boiler plates. 205. James Watt [Birmingham] to James Pool (Liverpool). — Mar. 1779. 135 206. James Watt [Birmingham] to John Turner [Bersham]. — Mar. 1779. 135 207. James Watt [Birmingham] to Nicholas Ryder (Martson Forge). 7 Mar. 1779. 136 Spelt here as “Rider”. 208. James Watt [Birmingham] to Thomas Wilson [Chacewater]. 7 Mar. 1779. 136 209. James Watt [Birmingham] to Jabez Hornblower [Donnington Wood]. 10 Mar. 1779. 136 210. James Watt [Birmingham] to Thomas Dudley [Hallamanin]. 10 Mar. 1779. 137 211. James Watt [Birmingham] to John Hall (Wren’s Nest). 10 Mar. 1779. 138 212. James Watt [Birmingham] to Gilbert Meason (Edinburgh). 11 Mar. 1779. 138 213. James Watt [Birmingham] to Jonathan Hornblower (Chacewater). 13 Mar. 1779. 139 214. James Watt [Birmingham] to Jukes Coulson [London]. 13 Mar. 1779. 140 215. James Watt [Birmingham] to John Turner [Bersham]. 13 Mar. 1779. 140 216. James Watt [Birmingham] to John Scott (Shrewsbury). 13 Mar. 1779. 140 217. James Watt [Birmingham] to ?. 13 Mar. 1779. 140 218. James Watt [Birmingham] to ? [“Mr. Scott]. — Mar. 1779. 140 219. James Watt [Birmingham] to Jabez Hornblower [Donnington Wood]. 16 Mar. 1779. 140 220. James Watt [Birmingham] to Clement Smith (Richmond). 17 Mar. 1779. 141 221. Memorandum. Draft of licence to Richmond Water Works. 17 Mar. 1779. 141 222. Matthew Boulton [Soho] to Phillip Burton (Shadwell). 18 Mar. 1779. 141 223. Logan Henderson [Birmingham] to John Scott (Shrewsbury). 18 Mar. 1779. 142 With a postscript by Watt. The letter contains a sketch of a manhole cover. 224. Boulton & Watt [Soho] to Samuel Garbett (—). 18 Mar. 1779. 143 225. James Watt [Birmingham] to Thomas Wilson [Chacewater]. 20 Mar. 1779. 145 226. James Watt (Birmingham) to Gilbert Meason [Edinburgh]. 20 Mar. 1779. 146 227. James Watt (Birmingham) to William Chapman [Newcastle]. 20 Mar. 1779. 147 228. Matthew Boulton and James Watt [Birmingham] to John Wilkinson [Broseley]. 22 Mar. 1779. 147 229. James Watt [Birmingham] to John Scott [Shrewsbury]. 21 Mar. 1779. 149 230. James Watt (Birmingham) to William Harris (Camborne). 24 Mar. 1779. 150 231. Matthew Boulton [Soho] to Thomas Fenton [Rothwell]. 20 Mar. 1779. 150 232. James Watt [Birmingham] to John Turner [Bersham]. 24 Mar. 1779. 151 233. Matthew Boulton [Soho] to Gilbert Meason (Edinburgh). 23 Mar. 1779. 151 234. James Watt [Birmingham] to Gilbert Meason [Edinburgh]. 27 Mar. 1779. 152 235. Boulton & Watt [Soho] to Richard Reynolds [Ketley]. 29 Mar. 1779. 152 236. James Watt [Birmingham] to Jacques Constantin Perier (Paris). 29 Mar. 1779. 153 237. James Watt [Birmingham] to Samuel Garbet (—). 30 Mar. 1779. 153 238. James Watt [Birmingham] to Matthew Wasbrough (Bristol). 30 Mar. 1779. 154 239. James Watt [Birmingham] to Jacques Constantin Perier [Paris]. 6 Apr. 1779. 155 240. James Watt [Birmingham] to Joseph Jary [Nantes]. 6 Apr. 1779. 156 241. James Watt [Birmingham] to Matthew Wasbrough (Bristol). 8 Apr. 1779. 157 242. James Watt [Birmingham] to Thomas Wilson (Chacewater). 8 Apr. 1779. 158 243. Memoranda: 159 James Watt [Birmingham] to John Turner [Bersham]. 10 Apr. 1779. James Watt [Birmingham] to Thomas Becket [Liverpool]. 10 Apr. 1779. James Watt [Birmingham] to Jonathan Hornblower [Poldice?]. 10 Apr. 1779 244. Matthew Boulton [Soho] to John Edwards [?] [Hayle]. 8 Apr. 1779. 159 245. James Watt [Birmingham] to Jabez Hornblower [Donnington Wood]. 12 Apr. 1779. 160 246. James Watt (Birmingham) to John Turner [Bersham]. 13 Apr. 1779. 161 247. James Watt [Birmingham] to William Harris (Camborne). 13 Apr. 1779. 161 248. James Watt [Birmingham] to John Williams (Poldice). 13 Apr. 1779. 163 249. James Watt [Birmingham] to Nicholas Ryder (Marston Forge). 19 Apr. 1779. 163 Spelt here as “Rider”. 250. James Watt [Birmingham] to Jabez Hornblower [Donnington Wood]. 19 Apr. 1779. 163 251. James Watt [Birmingham] to Thomas Wilson [Chacewater]. 20 Apr. 1779. 164 The letter includes a small sketch of a boiler. 252. James Watt [Birmingham] to William Chapman [Newcastle]. 20 or 21 Apr. 1779. 166 253. James Watt (Birmingham) to Capt. George Simmons [Tresamble]. 21 Apr. 1779. 167 254. James Watt [Birmingham] to William Harris [Camborne]. 21 Apr. 1779. 167 255. James Watt (Birmingham) to Thomas Wilson [Chacewater]. 21 Apr. 1779. 169 Mis-dated as 20 Apr. 256. James Watt (Birmingham) to John Wilkinson [Broseley?]. 25 Apr. 1779. 170 257. James Watt [Birmingham] to John James [Bristol]. 22 Apr. 1779. 171 258. James Watt [Birmingham] to Thomas Wilson [Chacewater]. 29 Apr. 1779. 171 259. James Watt [Birmingham] to John Gilbert [Worsley]. 29 Apr. 1779. 172 260. James Watt [Birmingham] to Anthony Mitchell [Hawkesbury Colliery]. — Apr./ May 1779. 172 261. James Watt [Birmingham] to John Turner [Bersham]. 5 May 1779. 173 The letter includes a drawing of a boiler steam pipe for J. C. Perier. 262. James Watt [Birmingham] to John Turner [Bersham]. — May 1779. 173 263. James Watt [Birmingham] to John Wilkinson [Broseley?]. 5 May 1779. 174 No. Description Page 264. James Watt (Birmingham) to Jabez Hornblower [Donnington Wood]. 7 May 1779. 174 265. James Watt [Birmingham] to John Wilkinson [Broseley?]. 7 May 1779. 175 266. James Watt [Birmingham] to William Murdock [Wanlockhead?]. 7 May 1779. 175 267. James Watt (Birmingham) to Mr. — Hodgkinson (New Burlington St., London). 8 May 1779. 176 268. James Watt [Birmingham] to William Harris [Camborne]. 8 May 1779. 176 269. James Watt [Birmingham] to Sir William Codrington [London]. 8 May 1779. 177 270. James Watt [Birmingham] to John Williams (Poldice). — May 1779. 177 271. Boulton & Watt [Soho] to James Paddey (Street Forge, Cheshire). — May 1779. 177 272. James Watt (Birmingham) to John Wilkinson [Bersham?]. 10 May 1779. 178 273. James Watt [Birmingham] to Thomas Wilson [Chacewater]. 11 May 1779. 179 274. James Watt [Birmingham] to Matthew Wasbrough [Bristol]. — May 1779. 179 The letter includes the sketch of a pipe. 275. James Watt (Birmingham) to Joseph Jary [Nantes]. 13 May 1779. 180 276. James Watt (Birmingham) to George Simmons [Tresamble]. 13 May 1779. 181 277. James Watt [Birmingham] to John Wilkinson [Bersham?]. 13 May 1779. 182 278. James Watt [Birmingham] to Matthew Boulton [London]. — May 1779. 183 279. James Watt [Birmingham] to Matthew Boulton (London). 17 May 1779. 183 The letter includes a sketch of a method of repairing a crack in the Chelsea Water Works engine cylinder. 280. James Watt [Birmingham] to Mayson Wright (Hull). 18 May 1779. 184 Mis-dated as 13 May. 281. James Watt (Birmingham) to Jonathan Hornblower (—). 18 May 1779. 184 282. James Watt [Birmingham] to Gilbert Meason [Edinburgh]. 18 May 1779. 185 283. James Watt [Birmingham] to John Turner [Bersham]. — May 1779. 186 284. James Watt [Birmingham] to Thomas Wilson [Chacewater]. 20 May 1779. 187 285. James Watt [Birmingham] to Joseph Jary [Nantes]. 19 May 1779. 187 No. Description Page 286. James Watt [Birmingham] to Joseph Jary [Nantes]. 20 May 1779. 188 287. James Watt [Birmingham] to Ambrose Weston [London]. 20 May 1779. 189 288. James Watt [Birmingham] to Jonathan Hornblower [?] (—). — May 1779. 190 289. James Watt [Birmingham] to John Turner [Bersham]. — May 1779. 191 The letter includes a small sketch of a flanch. 290. James Watt (Birmingham) to John Wilkinson [Bersham?]. 24 May 1779. 191 291. James Watt (Birmingham) to John Wilkinson [Broseley?]. 5 Jun. 1779. 192 292. James Watt [Birmingham] to John Turner (Bersham). — Jun. 1779. 192 293. James Watt [Birmingham] to John Turner [Bersham]. — Jun. 1779. 193 The letter includes a sketch of a section of the Poldory cylinder flanch and lid. 294. James Watt [Birmingham] to John Wilkinson [Broseley?]. — Jun. 1779. 193 295. James Watt [Birmingham] to John Wilkinson [?] [Broseley?]. 7 Jun. 1779. 194 296. James Watt (Birmingham) to John Wilkinson [Bersham?]. 14 Jun. 1779. 194 297. Boulton & Watt (Soho) to John Wilkinson [Bersham?]. 16 Jun. 1779. 195 298. James Watt (Birmingham) to John Wilkinson [Broseley?]. 26 Jun. 1779. 196 299. James Watt [Birmingham] to John Wilkinson [Broseley?]. 26 Jun. 1779. 196 300. James Watt (Birmingham) to John Turner [Bersham]. 26 Jun. 1779. 197 301. James Watt (Birmingham) to John Wilkinson [Broseley]. 27 Jun. 1779. 197 302. James Watt (Birmingham) to John Wilkinson [Bersham]. 5 Jul. 1779. 198 303. James Watt (Birmingham) to John Wilkinson [Bersham]. 2 Jul. 1779. 198 304. James Watt [Birmingham] to John Wilkinson [Bersham]. 7 Jul. 1779. 199 305. James Watt [Birmingham] to John Wilkinson (Bersham). 10 Jul. 1779 [?]. 199 306. James Watt (Birmingham) to John Wilkinson [Bersham]. 11 Jul. 1779. 200 307. James Watt (Birmingham) to John Wilkinson [Bersham]. 13 Jul. 1779. 200 308. James Watt (Birmingham) to John Wilkinson [Bersham]. 16 Jul. 1779. 201 309. James Watt [Birmingham] to Thomas Dudley [Scorrier?]. 22 May 1779. 202 No. Description Page 310. Matthew Boulton (—) to Thomas Wilson [Chacewater]. 22 May 1779. 203 311. Matthew Boulton (Birmingham) to Thomas Dudley [Scorrier?]. 27 May 1779. 204 312. James Watt [Birmingham] to Jonathan Hornblower (—). — May 1779. 204 313. Boulton & Watt (Birmingham) to The Coalbrookdale Co. [?]. 16 Jun. 1779. 205 Letter ordering pipes for Poldory Mine. 314. James Watt (Birmingham) to Jonathan Hornblower (—). 26 Jun. 1779. 205 315. James Watt [Birmingham] to William Harris (Rosewarne). 24 Jun. 1779. 206 316. James Watt (Birmingham) to Jonathan Hornblower (—). 29 Jun. 1779. 206 317. James Watt [Birmingham] to George Simmons [Tresamble?]. 30 Jun. 1779. 207 The date is given as “31 Jun.” 318. James Watt (Birmingham) to William Harris [Rosewarne]. 6 Jul. 1779. 208 319. James Watt [Birmingham] to Thomas Wilson [Chacewater]. 6 Jul. 1779. 209 320. James Watt (Birmingham) to George Simmons [Tresamble?]. 6 Jul. 1779. 210 321. James Watt (Birmingham) to Thomas Wilson [Chacewater]. 8 Jul. 1779. 211 322. James Watt (Birmingham) to Jonathan Hornblower (—). 13 Jul. 1779. 211 323. James Watt [Birmingham] to George Simmons [Tresamble?]. — Jul. 1779. 212 324. James Watt (Birmingham) to John James (Bristol). 15 Jul. 1779. 212 325. James Watt (Birmingham) to Thomas Wilson [Chacewater]. 15 Jul. 1779. 213 326. James Watt [Birmingham] to Logan Henderson [Pontesbury]. 31 May 1779. 214 The letter contains 3 small sketches. 327. James Watt (Birmingham) to Logan Henderson [Pontesbury]. 3 Jun. 1779. 214 328. James Watt [Birmingham] to Logan Henderson [Pontesbury]. 7 Jun. 1779. 215 329. James Watt (Birmingham) to Logan Henderson [Pontesbury]. 11 Jun. 1779. 216 330. James Watt [?] [Birmingham] to Logan Henderson [Pontesbury]. 14 Jun. 1779. 217 331. James Watt (Birmingham) to Logan Henderson [Pontesbury]. 17 Jun. 1779. 217 332. James Watt [Birmingham] to Logan Henderson [Pontesbury]. 23 Jun. 1779. 218 No. Description Page 333. James Watt (Birmingham) to Logan Henderson [Pontesbury]. 28 Jun. 1779. 219 334. James Watt [Birmingham] to Logan Henderson [Pontesbury]. 5 Jul. 1779. 219 335. James Watt [Birmingham] to Logan Henderson [Pontesbury]. — Jul. 1779. 220 336. James Watt [Birmingham] to Logan Henderson [Pontesbury]. 14 Jul. 1779. 220 337. James Watt (Birmingham) to Logan Henderson [Pontesbury]. 16 Jul. 1779. 222 338. James Watt (Birmingham) to John Scott [Shrewsbury]. 11 Jul. 1779. 223 339. James Watt (Birmingham) to William Chapman [Newcastle]. 23 May 1779. 224 The letter contains a small sketch of a ratchet and wheels used by Matthew Wasbrough. 340. James Watt (Birmingham) to William Chapman [Newcastle]. 18 Jun. 1779. 225 341. James Watt [Birmingham] to John Smeaton (—). — Jun. 1779. 226 342. James Watt (Birmingham) to William Chapman [Newcastle]. 25 Jun. 1779. 227 343. James Watt [Birmingham] to John Smeaton (—). — Jun. 1779. 228 344. James Watt [Birmingham] to Matthew Boulton [London]. — Jun. 1779. 229 345. James Watt (Birmingham) to Matthew Boulton [London]. 27 Jun. 1779. 230 346. James Watt (Birmingham) to Matthew Boulton [London]. 28 Jun. 1779. 230 347. James Watt [Birmingham] to Matthew Boulton [London]. — Jun./Jul. 1779. 231 348. James Watt (Birmingham) to Matthew Boulton [London]. 2 Jul. 1779. 231 The letter includes a transcript of a memorandum of “Experiments on Chelsea Engine by James Watt 4 Dec. 1775.” 349. James Watt (Birmingham) to Matthew Boulton [London]. 9 Jul. 1779. 231 350. James Watt [Birmingham] to Matthew Boulton [London]. 15 Jul. 1779. 232 351. James Watt (Birmingham) to Matthew Boulton [London]. 15 Jul. 1779. 233 352. James Watt [Birmingham] to ? [Nicholas Ryder] [Marston Forge]. — 1779. 233 353. James Watt (Birmingham) to ? [Nicholas Ryder] [Marston Forge]. 3 Jun. 1779. 233 354. Boulton & Watt (Birmingham) to Joseph Jary [Nantes]. 12 Jun. 1779. 234
No. Description Page 355. Boulton & Watt [Birmingham] to ? [Monsieur Dumontier]. [?] 16 Jun. 1779. [In French.] 234 356. James Watt (Birmingham) to Joseph Jary [Nantes]. 16 Jun. 1779. 235 357. James Watt (Birmingham) to Joseph Jary [Nantes]. 21 Jun. 1779. 236 358. James Watt [Birmingham] to ?. (—). 21 Jun. 1779. [In French.] 236 359. James Watt (Birmingham) to Joseph Jary [Nantes]. 19 Jul. 1779. 236 360. Boulton & Watt [Birmingham] to Jacques Constantin Perier [Paris]. — May1779. 237 361. James Watt (Birmingham) to John Motteux [London]. 6 Jun. 1779. 238 362. Boulton & Watt (Birmingham) to John Baldwyn [Chepstow]. 24 Jun. 1779. 238 Spelt here as “Baldwin”. 363. Boulton & Watt [Birmingham] to Jacques Constantin Perier [Paris]. 5 Jun. 1779. 238 The letter contains a sketch of a bead in the middle of a pipe. 364. James Watt (Birmingham) to J. Motteux & Co. [London]. 9 Jun. 1779. 239 365. James Watt (Birmingham) to Perier Frères et Cie. [Paris]. — Jul. 1779. 239 366. James Watt (Birmingham) to Gilbert Meason [Edinburgh]. 23 May 1779. 241 367. James Watt (Birmingham) to William Murdock [Wanlockhead]. 3 Jun. 1779. 242 368. James Watt (Birmingham) to Gilbert Meason [Edinburgh]. 12 Jun. 1779. 243 369. James Watt (Birmingham) to ? [Alexander Keith] [Edinburgh]. 19 Jun. 1779. 244 370. James Watt (Birmingham) to William Murdock (Wanlockhead). 30 Jun. 1779. 244 371. James Watt [Birmingham] to ? [Gilbert Meason] [Edinburgh]. — Jul. 1779. 245 372. James Watt (Birmingham) to Samuel Galton (—). 15 Jul. 1779. 247 373. “Calculations relating to Wheal Busy.” Stuck in at 247 In James Watt’s hand 374. James Watt [Birmingham] to Jabez Hornblower (Donnington Wood). 3 Jun. 1779. 247 375. James Watt (Birmingham) to Jabez Hornblower [Donnington Wood]. 25 Jun. 1779. 248 376. James Watt (Birmingham) to Jabez Hornblower (Donnington Wood). 14 Jul. 1779. 248 The letter contains a sketch of a lever and plug. No. Description Page 377. James Watt (Birmingham) to John Hall (Wren’s Nest). 3 Jun. 1779. 249 378. James Watt [Birmingham] to John Hall (Wren’s Nest). 7 Jun. 1779. 250 379. James Watt (Birmingham) to John Hall (Wren’s Nest). 14 Jul. 1779. 251 380. James Watt (Birmingham) to Thomas Southern [Wensley]. 5 Jul. 1779. 251 381. Memorandum. Proposed agreement for the Gregory Mine engine. 251 The original was signed by Matthew Boulton. 382. Boulton & Watt (Birmingham) to Jna. Weston (—). 16 Jun. 1779. 252 383. Boulton & Watt (Birmingham) to ? (—). 20 Jun. 1779. 253 384. James Watt (Birmingham) to “Anthony” [Anthony Mitchell?] (—). 13 Jun. 1779. 254 385. James Watt [Birmingham] to William Milnes (Ashover). — 1779. 254 386. James Watt [Birmingham] to Matthew Boulton [London]. — Jul.1779. 255 387. James Watt (Birmingham) to John Wilkinson (Broseley). 24 Jul. 1779. 256 388. James Watt (Birmingham) to William Chapman [Newcastle]. 24 Jul. 1779. 256 389. James Watt (Birmingham) to William Harris [Rosewarne]. 27 Jul. 1779. 257 The date has been mis-transcribed as 1797. 390. James Watt (Birmingham) to John Turner [Bersham]. 25 Jul. 1779. 258 391. James Watt (Birmingham) to Joseph Jary [Nantes]. 26 Jul. 1779. 258 392. James Watt (Birmingham) to Jonathan Hornblower (—). 27 Jul. 1779. 260 393. James Watt [Birmingham] to Jabez Hornblower (Donnington Wood). [27 Jul. 1779]. 260 394. James Watt (Birmingham) to John Wilkinson [Broseley]. 27 Jul. 1779. 261 395. James Watt (Birmingham) to Jacques Constantin Perier [Paris]. 28 Jul. 1779. 261 396. James Watt (Birmingham) to John Turner [Bersham]. 29 Jul. 1779. 262 397. James Watt [Birmingham] to Anthony Mitchell [Bedworth]. [?] 29 Jul. 1779. 262 398. James Watt (Birmingham) to William Murdock [Wanlockhead]. 29 Jul. 1779. 263 399. James Watt [Birmingham] to Gilbert Meason [Edinburgh]. — Jul. 1779. 263 400. James Watt (Birmingham) to John Wilkinson [Bersham?]. 31 Jul. 1779. 264 No. Description Page 401. James Watt (Birmingham) to George Simmons [Tresamble?]. 31 Jul. 1779. 265 402. James Watt [Birmingham] to Jabez Hornblower [Donnington Wood]. 31 Jul./ — Aug.1779. 265 403. James Watt (Birmingham) to John Wilkinson [Bersham]. 4 Aug. 1779. 265 404. James Watt (Birmingham) to George Simmons [Tresamble?]. 5 Aug. 1779. 266 Date mis-transcribed as 5 Jul. 405. James Watt (Birmingham) to Jonathan Hornblower (Chacewater). 5 Aug. 1779. 266 Date mis-transcribed as 5 Jul. 406. James Watt (Birmingham) to William Harris (Rosewarne). 5 Aug. 1779. 267 407. James Watt (Birmingham) to Thomas Wilson [Chacewater]. 5 Aug. 1779. 267 408. James Watt (Birmingham) to John Wilkinson [Bersham]. 6 Aug. 1779. 267 Date mis-transcribed as 5 Jul. 409. James Watt (Birmingham) to Gilbert Meason [Edinburgh]. 9 Aug. 1779. 268 410. James Watt [Birmingham] to [John] Weston (—). 9/10 Aug. 1779. 269 411. James Watt (Birmingham) to William Harris [Rosewarne]. 10 Aug. 1779. 269 412. James Watt (Birmingham) to John Wilkinson [Bersham]. 10 Aug. 1779. 269 413. James Watt (Birmingham) to Alexander Keith (Edinburgh). 12 Aug. 1779. 270 414. James Watt [Birmingham] to Matthew Boulton [London]. [12 Aug. 1779]. 270 415. James Watt (Birmingham) to Jonathan Hornblower [Chacewater?]. 12 Aug. 1779. 271 416. James Watt (Birmingham) to William Harris [Rosewarne]. 12 Jul. 1779. 271 Date mis-transcribed as 12 Jul. 417. James Watt [Birmingham] to Thomas Wilson [Chacewater]. [12 Aug. 1779]. 271 418. James Watt (Birmingham) to Jacques Constantin Perier [Paris]. 12 Aug. 1779. 272 419. James Watt [Birmingham] to John Wilkinson [Bersham]. 12 Aug. 1779. 272 420. James Watt [Birmingham] to Edward Salmon [Hassall]. 13 Aug. 1779. 274 The letter includes a transcript of Salmon’s account with Boulton & Watt, Apr. 1778 and a small sketch of a piston spring. 421. James Watt (Birmingham) to Matthew Boulton [London]. 13 Aug. 1779. 275 No. Description Page 422. James Watt [Birmingham] to Jonathan Hornblower (Chacewater). [?] 13 Aug. 1779. 276 423. James Watt (Birmingham) to Jabez Hornblower [Donnington Wood]. 13 Aug. 1779. 276 The letter includes a sketch of a valve edge and seat. 424. James Watt (Birmingham) to Matthew Boulton (London). 15 Aug. 1779. 277 The date has been mis-transcribed as 1797. 425. James Watt (Birmingham) to John Wilkinson [Bersham]. 15 Aug. 1779. 277 426. James Watt (Birmingham) to John Hope (Amsterdam). 15 Aug. 1779. 278 427. James Watt (Birmingham) to Joseph Harrison (Cornwall). 16 Aug. 1779. 280 428. James Watt (Birmingham) to Thomas Wilson [Chacewater]. 17 Aug. 1779. 281 429. James Watt (Birmingham) to Matthew Boulton [London]. 17 Aug. 1779. 281 430. James Watt (Birmingham) to John Turner [Bersham]. 17 Aug. 1779. 282 The letter includes a transcript of an order for parts for Tresavean. 431. James Watt (Birmingham) to William Harris [Rosewarne]. 19 Aug. 1779. 283 432. James Watt [Birmingham] to John Wilkinson [Bersham]. 19 Aug. 1779. 283 433. James Watt (Birmingham) to [John?] Weston (Capia [?] Lodge, near Nantwich]. 21 Aug. 1779. 284 434. James Watt (Birmingham) to Joseph Jary [Nantes]. 25 Aug. 1779. 285 435. James Watt (Birmingham) to Edward Salmon [Hassall]. 25 Aug, 1779. 285 436. Memorandum. Money received from Messrs. Salmon and Penlington, and transcript of licence for the Lawton salt works engine. 25 Aug. 1779. 286 437. Boulton & Watt [Birmingham] to John Baldwyn [Chepstow]. — Aug. 1779. 286 Spelt here as “Baldwin”. 438. James Watt [Birmingham] to Jacques Constantin Perier [Paris]. — Aug. 1779. 287 439. James Watt [Birmingham] to John Wilkinson [Bersham]. — Aug. 1779. 287 440. Boulton & Watt [Birmingham] to B. Hodgkinson (—). 28 Aug. 1779. 288 441. James Watt (Birmingham) to Jonathan Hornblower (Chacewater). 28 Aug. 1779. 288 442. James Watt [?] [Birmingham] to [Jabez Hornblower] [Ketley]. 28 Aug. 1779. 288 443. James Watt (Birmingham) to Thomas Wilson [Chacewater]. 28 Aug. 1779. 289 No. Description Page 444. James Watt (Birmingham) to John Wilkinson [Bersham]. 25 Aug. 1779. 289 445. James Watt (Birmingham) to John Wilkinson [Bersham]. 27 Aug. 1779. 290 The date of this letter may be incorrect. 446. Boulton & Watt (Birmingham) to John Baldwyn [Chepstow]. 28 Aug. 1779. 292 Spelt here as “Baldwin”. 447. James Watt (Birmingham) to John Wilkinson [Bersham]. 31 Aug. 1779. 292 448. James Watt (Birmingham) to R. Bakewell [Gresley Hall]. — Aug./Sep. 1779. 292 449. James Watt (Birmingham) to J. Motteux & Co. [London]. 1 Sep. 1779. 293 450. James Watt (Birmingham) to Jacques Constantin Perier [Paris]. 1 Sep. 1779. 293 451. James Watt (Birmingham) to Henry Williams (Wren’s Nest). 1 Sep. 1779. 294 452. James Watt (Birmingham) to John [?] Weston (Bersham). 2 Sep. 1779. 294 453. Boulton & Watt (Birmingham) to Cook & Co. [London]. 2 Sep. 1779. 295 454. James Watt [Birmingham] to John Wilkinson [Bersham]. 2 Sep. 1779. 295 455. Continuation of Watt to Wilkinson, 2 Sep. 1779? 296 456. James Watt (Birmingham) to Gilbert Meason [Edinburgh]. 3 Sep. 1779. 296 457. Boulton & Watt (Birmingham) to John Baldwyn (Chepstow). 4 Sep. 1779. 298 Spelt here as “Baldwin”. 458. James Watt [Birmingham] to R. Bakewell [Gresley Hall]. 4 Sep. 1779. 298 459. James Watt [Birmingham] to Logan Henderson (Burton). 4 Sep. 1779. 298 460. James Watt (Birmingham) to R. Bakewell [Gresley Hall]. 6 Sep. 1779. 299 461. James Watt (Birmingham) to John Budge (—). 7 Sep. 1779. 299 Spelt here as “Bouge”. 462. James Watt (Birmingham) to William Murdock (—). 7 Sep. 1779. 299 463. James Watt (Birmingham) to Jonathan Hornblower (—). 7 Sep. 1779. 299 464. James Watt (Birmingham) to Joseph Harrison [Cornwall]. 9 Sep. 1779. 300 465. Matthew Boulton (Birmingham) to James Dormer [Longford]. 9 Sep. 1779. 300 466. James Watt (Birmingham) to John Turner [Bersham]. 9 Sep. 1779. 300 No. Description Page 467. James Watt (Birmingham) to John Stackhouse (Pendennis). 11 Sep. 1779. 301 468. James Watt (Birmingham) to John Wilkinson (Bersham). 11 Sep. 1779. 301 469. James Watt (Birmingham) to Joseph Harrison [Cornwall]. 11 Sep. 1779. 302 470. James Watt [Birmingham] to John Turner [Bersham]. 11/12 Sep. 1779. 303 471. James Watt (Birmingham) to Alexander Keith (Edinburgh). 12 Sep. 1779. 303 472. Boulton & Watt [Birmingham] to Spedding Hicks & Co. [Seaton Works]. — Sep. 1779. 304 473. James Watt (Birmingham) to William Milnes (Ashover). 14 Sep. 1779. 305 474. James Watt (Birmingham) to Joseph Jary [Nantes]. 15 Sep. 1779. 306 475. James Watt (Birmingham) to Joseph Jary [Nantes]. 16 Sep. 1779. 308 476. James Watt (Birmingham) to John Wilkinson [Court]. 14 Sep. 1779. 308 477. James Watt (Birmingham) to Nicholas Ryder (Marston Forge). 16 Sep. 1779. 309 478. James Watt (Birmingham) to Edward Brown (East Denton). 18 Sep. 1779. 309 479. James Watt (Birmingham) to John Wilkinson [Bersham]. 18 Sep. 1779. 309 480. James Watt (Birmingham) to William Milnes [Ashover]. 20 Sep. 1779. 310 Spelt here as “Mylnes”. 481. James Watt (Birmingham) to John Wilkinson [Bersham]. 20 Sep. 1779. 310 482. Memorandum. Order for the Eagle Foundry. 20 Sep. 1779. 311 483. James Watt (Birmingham) to J. Motteux & Co. [London]. 22 Sep. 1779. 311 484. James Watt (Birmingham) to Jabez Hornblower [Ketley]. 22 Sep. 1779. 312 485. Boulton & Watt [Birmingham] to John James (Bristol). [22 Sep. 1779.] 313 486. James Watt (Birmingham) to Thomas Wilson [Chacewater]. 22 Sep. 1779. 313 487. Matthew Boulton (Birmingham) to Mr. — Flood (Exeter). 22 Sep. 1779. 313 488. James Watt (Birmingham) to John Wilkinson [Bersham]. 24 Sep. 1779. 314 489. James Watt (Birmingham) to William Chapman [Newcastle]. 25 Sep. 1779. 314
No. Description Page 490. Boulton & Watt (Soho) to John Scott (Shrewsbury). 29 Sep. 1779. 315 The letter includes a transcript of Scott’s account with Boulton & Watt. 491. Memorandum. Matthew Boulton [Soho] to James Watt [Chacewater]. 29 Sep. 1779. 315 492. Memorandum. Matthew Boulton [Soho] to James Watt [Chacewater]. 4 Oct. 1779. 315 493. Memorandum. Matthew Boulton [Soho] to James Watt [Chacewater]. 18 Oct. 1779. 315 494. Matthew Boulton [Soho] to John Lean (Wine St., Bristol). 18 Oct. 1779. 316 495. Boulton & Watt [Birmingham] to John Weston (Penryndee). 19 Oct. 1779. 317 496. Boulton & Watt (Birmingham) to John James [Bristol]. 19 Oct. 1779. 317 The date has been mis-transcribed as 1797. 497. Matthew Boulton (Soho) to John Gilbert (—). 20 Oct. 1779. 318 498. Memorandum. Matthew Boulton [Soho] to James Watt [Chacewater]. 21 Oct. 1779. 320 499. Memorandum. Matthew Boulton [Soho] to James Watt [Chacewater]. 23 Oct. 1779. 320 500. Matthew Boulton [Soho] to Thomas Fenton (Rothwell Haigh). 23 Oct. 1779. 320 501. Matthew Boulton [Soho] to John Scott [Shrewsbury]. 23 Oct. 1779. 321 502. Boulton & Watt [Birmingham] to Prichard & Barlow (Wharfingers Quay, Bristol). 9 Nov. 1779. 322 Spelt here as “Pritchet & Barlow”. 503. Matthew Boulton (Soho) to John Wilkinson [Bersham]. 12 Nov. 1779. 322 504. Boulton & Watt (Soho) to James Dormer [Longford]. 12 Nov. 1779. 323
505—586: Soho Letters 27 Feb.—15 Jul. 1780. Pages 325 to 401 are blank. The memorandum at the start of the book notes that “Soho Letters from 12 Nov. 1779 to 13 Jan. 1780 are wanting as also Cornish letters up to Mr. Watt’s return 27 Feb. 1780.” 505. James Watt (Birmingham) to John Wilkinson [London]. 27 Feb. 1780. 402 506. Boulton & Watt [?] [Birmingham] to ? (—). [27 Feb. 1780.]. 402 Part of a letter to a shipping agent. 507. Boulton & Watt (Birmingham) to Thomas Wilson [Chacewater]. 27 Feb. 1780. 402 508. Boulton & Watt (Soho) to John Wilkinson [London]. 28 Feb. 1780. 403 No. Description Page 509. James Watt (Birmingham) to John Turner [Bersham]. 1 Mar. 1780. 404 510. James Watt (Birmingham) to Jabez Hornblower [?] (—). 1 Mar. 1780. 404 511. Boulton & Watt (Soho) to Thomas Wilson [Chacewater]. 1 Mar. 1780. 404 512. James Watt (Birmingham) to — Matthews (—). 6 Mar. 1780. 405 513. James Watt (Birmingham) to John Budge [Camborne]. 6 Mar. 1780. 406 514. James Watt (Birmingham) to Alexander Black (111 Upper Thames St., London). 7 Mar. 1780. 407 515. James Watt (Birmingham) to Thomas Wilson [Chacewater]. 7 Mar. 1780. 407 516. James Watt (Birmingham) to John Turner (Bersham). 13 Mar. 1780. 408 517. James Watt (Birmingham) to Jabez Hornblower (—). 13 Mar. 1780. 408 518. James Watt (Birmingham)to Francis Thompson [Ashover]. 13 Mar. 1780. 408 519. James Watt [Birmingham] to Thomas Wilson [Chacewater]. 13/14 Mar. 1780. 409 520. James Watt (Birmingham) to John Turner [Bersham]. 14 Mar. 1780. 409 521. James Watt (Birmingham) to Thomas Wilson [Chacewater]. 21 Mar. 1780. 410 522. James Watt (Birmingham) to John Turner (Bersham). 20 Mar. 1780. 410 The letter contains a sketch of air pump box flanches. 523. James Watt (Birmingham) to Joseph Jary [Nantes]. — Mar. 1780. 411 524. Memorandum. Order from Messrs. Boulton & Watt for Messrs. Spedding Hicks & Co. — Mar. 1780. 413 525. James Watt [Birmingham] to Richard Dearman (Eagle Foundry). 27 Mar. 1780. 413 526. James Watt (Birmingham) to John Turner [Bersham]. 25 Mar. 1780. 413 527. James Watt (Birmingham) to John Williams [Burncoose]. 26 Mar. 1780. 414 528. James Watt [Birmingham] to Logan Henderson [?] [Redruth]. — Mar. 1780. 414 529. James Watt (Birmingham) to John Budge [Camborne]. 28 Mar. 1780. 415 530. James Watt (Birmingham) to John Wilkinson (Bersham). 29 Mar. 1780. 415 531. James Watt (Birmingham) to Jabez Hornblower (—). 29 Mar. 1780. 416 No. Description Page 532. James Watt (Birmingham) to John Wilkinson (Bersham). 1 Apr. 1780. 417 533. James Watt (Birmingham) to Logan Henderson [Redruth]. 4 [?] Apr. 1780. 417 534. James Watt (Birmingham) to Logan Henderson [Redruth]. 11 Apr. 1780. 418 535. James Watt [Birmingham] to Logan Henderson [Redruth]. 12 [?] Apr. 1780. 418 536. James Watt (Birmingham) to John Wilkinson [Bersham]. 14 Apr. 1780. 418 537. James Watt (Birmingham) to Jonathan Hornblower (—). 15 Apr. 1780. 419 538. James Watt (Birmingham) to John Turner (Bersham). 15 Apr. 1780. 419 539. James Watt (Birmingham) to William Richards (Halgarrack). 18 Apr. 1780. 420 540. Memorandum. Order to Eagle Foundry for Boulton & Watt for Poldice Middle Engine. 21 Apr. 1780. 420 The original was signed by Watt and sent to Richard Dearman. 541. James Watt (Birmingham) to Thomas Wilson [Chacewater]. 20 Apr. 1780. 421 542. James Watt (Birmingham) to Logan Henderson [Redruth]. 22 Apr. 1780. 421 543. James Watt (Birmingham) to John Wilkinson [Bersham]. 25 Apr. 1780. 422 544. James Watt (Birmingham) to John Turner (Bersham). 24 Apr. 1780. 423 545. James Watt [Birmingham] to Logan Henderson [Redruth]. 25 Apr. 1780. 424 546. James Watt (Birmingham) to William Richards (Halgarrack). 29 Apr. 1780. 424 547. James Watt (Birmingham) to Henry Williams (Wren’s Nest). 29/30 Apr. 1780. 425 548. James Watt (Birmingham) to Gore & Shears [London]. 1 May 1780. 425 549. James Watt (Birmingham) to John Wilkinson [Broseley]. 7 May 1780. 425 550. James Watt (Birmingham) to Logan Henderson [Redruth]. 9 May 1780. 425 551. James Watt (Birmingham) to Francis Thompson (Ashover). 12 May 1780. 427 552. James Watt (Birmingham) to ? [Cornwall]. 12 May 1780. 427 553. James Watt (Birmingham) to John Turner (Bersham). — May 1780. 428 The letter contains a sketch of a flanch and screw-down holes. 554. James Watt (Birmingham) to Thomas Kevill (Camborne). 23 May 1780. 428 No. Description Page 555. James Watt (Birmingham) to Logan Henderson [Redruth]. 23 May 1780. 428 The letter contains a small sketch of screw holes and a diagram for a curve for a Y shaft. 556. James Watt (Birmingham) to John Turner (Bersham). 24 May 1780. 430 557. James Watt (Birmingham) to John Turner (Bersham). 25 May 1780. 430 558. James Watt (Birmingham) to Logan Henderson [Redruth]. 25 May 1780. 431 559. James Watt (Birmingham) to Mr. — Taylour (Bedworth). 29 May 1780. 431 560. James Watt (Birmingham) to Anthony Mitchell (Bedworth). 29 May 1780. 432 561. James Watt (Birmingham) to John Williams [?] [Truro]. 31 May 1780. 433 562. James Watt (Birmingham) to Logan Henderson [Redruth]. 31 May 1780. 433 563. Boulton & Watt (Birmingham) to Prichard & Barlow [Bristol]. 31 May 1780. 434 564. James Watt (Birmingham) to John Turner (Bersham). 31 May 1780. 434 565. James Watt (Birmingham) to Joseph Jary [Nantes]. 1 Jun. 1780. 434 566. James Watt (Birmingham) to Jabez Hornblower (—). 1 Jun. 1780. 435 567. James Watt (Birmingham) to John Turner (Bersham). 5 Jun. 1780. 435 568. James Watt (Birmingham) to Logan Henderson [Redruth]. — Jun. 1780. 436 569. James Watt (Birmingham) to Thomas Kevill [Camborne]. — Jun. 1780. 436 This letter was written on the same day as the letter to Henderson. 570. James Watt (Birmingham) to Mr. — Taylour (Bedworth). 3 Jun. 1780. 436 571. James Watt (Birmingham) to Logan Henderson [Redruth]. 13 Jun. 1780. 437 572. James Watt (Birmingham) to Thomas Wilson [Chacewater]. 13 Jun. 1780. 437 573. James Watt (Birmingham) to John Wright (Dumfermline). [13 Jun. 1780.] 438 574. James Watt [Birmingham] to William Richards (Halgarrack). [13 Jun. 1780.] 438 575. James Watt (Birmingham) to John Wilkinson [Bersham?]. 13 Jun. 1780. 439 576. James Watt (Birmingham) to Jethro Hornblower [Whitehall]. 15 Jun. 1780. 439 577. James Watt (Birmingham) to Jabez Hornblower (—). 15 Jun. 1780. 439 No. Description Page 578. James Watt (Birmingham) to Francis Thompson [?] [Ashover]. 17 Jun. 1780. 440 579. James Watt (Birmingham) to John Turner (Bersham). 8 Jul. 1780. 441 580. James Watt (Birmingham) to Logan Henderson [Redruth]. 13 Jul. 1780. 442 581. James Watt (Birmingham) to John Wilkinson [Bersham]. 14 Jul. 1780. 442 582. James Watt (Birmingham) to John Wilkinson [Bersham]. 15 Jul. 1780. 443 583. Boulton & Watt (Soho) to Thomas Wilson [Chacewater]. 15 Jul. 1780. 443 584. James Watt [?] (Soho) to ? (—). 18 Jun. 1780. 444 The letter concerns sending a copying press to someone who is going to India via his son Mr. Hoofstetter. 585. James Watt (Soho) to John Turner [Bersham]. — 1780. 445 586. James Watt [?] (Birmingham) to ? [Cornwall]. 19 Jun. 1780. 445 |