NOTICE. 









‘Tuts Catalogue being intended to contain all books received into the 
Society s Library up to the end of J une 1830, it is hoped that errors and 
a 4 omissions will not prove numerous, although some such defects are perhaps 
unavoidable i 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 8, and 
el in the alphabetical order of their places of publication. To 
Se aitate reference, an. index to these publications has been appended to 
: ‘the Be calogus. Names of authors with the prefix “ De” or “ Von,” or 
4 with the equivalent prefixes in other languages, have been arranged 
* according to the initial letter of the name following the prefix ; but when — 
| 1e8e prefixes are followed by an article, both are considered as forming 
: art of the author’s name. In most cases where doubt was possible an 
a “endeavour has been made to remove the difficulties by means of cross- 
references. 
Geological Society, Burlington House, 
a 27th January, 1881. 
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