Copy letter from Herbert Rix, to Professor Edward Waymouth Reid, University College, Dundee, N.B. 'Dear Sir, We have your corrected plates and letter. We think there is hardly any need for going to the expense of a revise in the case of two of the plates, but we will send you a revise of the other two. Hoping this will meet the necessities of the case. I am, yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 1 March 1894