Copy letter from Herbert Rix, to Professor Mervyn Herbert Nevil Story Maskelyne, Fellow of the Royal Society 'Dear Sir, In answer to yours of the 20th, you are entitled to "Philosophical Transactions" ['Philosophical Transactions of the Royal Society'] 1889-93, and these we will send you at once. You will then be wanting in 1886-88 ^(6 parts)^. If you have six parts in good condition among your duplicates, we are willing to exchange; if you have not, it will be necessary to make an appeal to Council. I cannot say whether it would be granted. I am, yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 22 January 1894