| Description | Letters from John Rennie from 1784 to 1786. During this period Rennie worked for Boulton & Watt as a millwright in London, but the arrangements between them were very informal, as Rennie was technically in business on his own. He also acted as their London agent, advising customers about engines and passing on enquiries to Boulton & Watt. The letters are all addressed to James Watt, except for one of 1784 to Boulton & Watt. Up until 1798, there are two series of Rennie’s letters; one to James Watt, and the other of letters that were answered by John Southern. The letters are dated as follows: Nos. 1-2. 1784 Nos. 3-33. 1785 Nos. 34-69. 1786 |