NOTICE. 



This Catalogue being intended to contain all books received into the 

 Society's Library up to the end of June 1880, it is hoped that errors and 

 omissions will not prove numerous, although some such defects are perhaps 

 unavoidable in a Catalogue prepared without stopping the circulation of 

 books among the Fellows. The Catalogue is arranged alphabetically 

 throughout ; and periodical publications of all sorts (except some issued 

 by Surveys) have been placed as " Serials " under the letter S, and 

 arranged in the alphabetical order of their places of publication. To 

 facilitate reference, an index to these publications has been appended to 

 the Catalogue. Names of authors with the prefix " De " or " Von," or 

 with the equivalent prefixes in other languages, have been arranged 

 according to the initial letter of the name following the prefix ; but when 

 these prefixes are followed by an article, both are considered as forming 

 part of the author's name. In most cases where doubt was possible an 

 endeavour has been made to remove the difficulties by means of cross- 

 references. ^ 



Geological Society, Burlington House, 

 27th January, 1881. 



