Letter from Mr Thomson to Sir William Forbes Letter from Mr Thomson, 19 North Castle Street, to Sir William Forbes, sending to Forbes, compliments and originals of two letters addressed by Forbes to the late Lord Hailes. Letter also sends ? letters from James Beattie to Lord Hailes, of which the originals are in Thomson's possession. Letter says that Thomson would welcome any letters that were from Lord Hailes, which Forbes has in his possession. Addressed to: 'Sir W. Forbes, Bart.' 11 April 1804