Copy letter from Herbert Rix, to Mr H Gronwald, Natural History Museum, South Kensington, S.W. 'Dear Sir, Your estimate for drawing the teeth for Dr [Charles Immanuel] Forsyth-Major's paper is accepted. The engraver will be Mr Collings of 172 Strand. I am sending him a line, and he will supply you with the wood and do the cutting when you have finished the drawing. Yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 10 October 1893