Scope and Contents The material in the collection consists of: - at E94.90: a letter from Charles Wyville Thomson written on 2 June 1850 at the home of the Reverend Ainslie and addressed to 'My Dear Sir' - it refers to how he had met with a kind reception from Mr. and Mrs. Ainslie who 'pressed him to dine with them and to take a bed at their home', and how the following day they were to take him to Sir David Brewster's -...