Copy letter from Herbert Rix, to Messrs Newton & Company, 3 Fleet Street, E.C. 'Dear Sir, With reference to your letter of February 19th, I am authorised by the Treasurer and Secretaries to accept your estimate. The list of objectives, &c., of February 29th appear to be suitable to our wants. You will, therefore, deliver these with the instrument at your early convenience. I am, yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 23 March 1896