Copy letter from an unknown correspondent, to Messrs E W G Allen & Son Limited, 28 Henrietta Street, Covent Garden, W.C. Lists the volume numbers and published prices of 'Philosophical Transactions [of the Royal Society]' published after volume A 195. The volumes may be obtained from Messrs Harrison & Sons, 45 St Martin's Lane, at the trade discount of 25 percent. 6 December 1902