Copy letter from Herbert Rix, to Oliver Heaviside, Fellow of the Royal Society 'Dear Sir, Enclosed herewith I send the printers' answer to your criticism of their type. I am inclined to think that we have got as near as we can to your pattern, and I propose now to go on with the paper. Where we have to cast type I will tell the printers to mind their p's and q's, and to make the q's in particular rather less oblong. I am, yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 19 January 1892