PREFACE. 



, the fifth volume of the Catalogue of the Collection of Books, Maps, &c., 

 in the Natural History branch of the British Museum, brings the series of 

 entries under the authors' names down to the end of the alphabet. The first 

 sheet of the volume was passed for press in June 1913. 



The lines on which it has been prepared have been fully set forth in the 

 " Introduction " to the first volume. 



Thanks for assistance in its production are due to the persons already men- 

 tioned in the Prefaces and Introduction to the preceding volumes. 



L. FLETCHER, 



Director. 



BRITISH MUSEUM (XATUBAL HISTORY). 

 June With, 1915. 



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