Copy letter from Robert William Frederick Harrison to Dr H Forster Morley, International Catalogue of Scientific Literature, 34 & 35 Southampton Street, Strand, WC 'Dear Dr Morley, I am returning to you 1 copy of N (Zoology) of the International Catalogue, 7th. Annual Issue. Two copies of this volume have just been received, although we have now only subscribe for 1 set. I presume the 2nd volume was sent in error and I therefore return it to you.' 18 February 1909