Copy letter from Robert William Frederick Harrison, to The Curator of Books, American Museum of Natural History, 77th Street and Central Park West, New York, USA The Bulletins used to be received in two forms, first small batches of separate papers each marked 'Author's copy printed in advance', and then later the completed volume would arrive. It was not deemed necessary to keep the authors' set. In volumes 17, 18, 19, 21, 22, 23 and 24 no completed volumes were sent, hence the trouble. Under the circumstances Harrison asks them to do what they can. 22 November 1909