Copy letter from Herbert Rix, to Dr Alfredo Antunes Kanthack, St Bartholomew's Hospital, E.C. 'Dear Sir, Will you kindly hire the microscopes for your exhibit and send us the bill? We are writing to most of the exhibitors to ask them to do this. There is a very large demand for microscopes this time, and if you could make do with six instead of eight, every inch of space is valuable. Lamps should also be hired as we have none available. I am, yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 26 April 1894