In answer to your letter of March 2nd., which the Library Committee have only lately had an opportunity of considering. I am requested to explain that the "Catalogue of Scientific Papers" is published, not by the Royal Society, but by Messrs. Clay & Sons, and is a private enterprise. We are, unfortunately, not able to present you with a gratis copy.
I am, yours truly,
Asst. Sec. R.S. [Assistant Secretary, Royal Society]'.