PKEFACE 



THE second volume of the Supplement to the Catalogue of the Library 

 of the British Museum (Natural History), and the seventh of the whole 

 series, was in course of preparation by the late MR. BASIL H. SOULSBY when he 

 retired from the service of the Museum in 1930. His successor in the Library, 

 MR. A. c. TOWNSEND, has now completed the work. 



Thanks for assistance in the production of the volume are especially due to 



DR. A. B. RENDLE, F.R.S., MR. W. H. BROADBENT, DR. L. J. SPENCER, F.R.S., and 



MR. H. w. ENGLAND, who have acted for the Departments of Botany, Geology, 

 Mineralogy, and Zoology respectively. 



MR. w. H. T. TAMS, of the Department of Entomology and MR. j. ARDAGH, 

 of the Department of Botany, have also given welcome assistance, and MR. B. p. 

 UVAROV has on several occasions kindly helped with Russian titles. 



Finally, DR. c. DAVIES SHERBORN has with the utmost willingness placed his 

 great bibliographical knowledge entirely at the disposal of MR. TOWNSEND and 

 his collaborators. 



C. TATE REGAN. 



Director. 



BRITISH MUSEUM (NATURAL HISTORY) 

 3rd October 1933. 



