Copy letter from Robert William Frederick Harrison to Mr E A MacClean, The Exchange, 1444 Broadway, NY 'Dear Sir, I am in receipt of your letter of December 28 relating to the International Catalogue of Scientific Literature, and have sent it on to the Director of the Catalogue, which is conducted in its own office 35 Southampton Street, Strand, WC. He will no doubt communicate with you direct.' 7 January 1909