338 



[Dec. 1847. 



haps more than any others since the origin of the Institution, to produce a 

 better knowledge, and more correct appreciation of the truly legitimate ob- 

 jects of the latter, to invite and encourage study and research, and, not the 

 least of all, to bring together, and to create more frequent intercourse be- 

 tween, the members of the Society. 



The number of additions of all descriptions to the Library in the various 

 departments, during the presentyear, is exhibited in the following table : 



General Nat. History > 



and Zoology, 

 Botany, 

 Conchology, 

 Geology, 

 Ornithology, 

 Herpetology, 

 Ichthyology, 

 Entomology, 

 Mineralogy, 

 Anatomy and "I 



Physiology, J 

 Helminthology, 

 Physical Science ? 



and Chemistry, 5 

 Medicine, 



Carried over, 



r 



Brought over, 



Agriculture, 



Voyages and Travels, 



Languages, 



Bibliography, 



Education, 



Geography, 



Journals, Annals, 

 Trans. & Proceed, of 

 Soc, Memoirs, &c 



Biography, 



History, 



Useful Arts, 



Antiquities, 



Addresses, Reports, &c 



Totals, 



.) 



453 

 1 



34 

 1 



17 

 2 



11 



97 



1 



2 

 2 

 8 

 1 



o . 





250 



109 



630 359 82 



p. 



a 



3 



ft 



73 



3 

 1 



1 



Making a total of 1072 additions of all descriptions to the Library in 1847. 



Of the whole number, there were presented by authors 54 ; by editors 31 ; 

 by members, correspondents and others 119; by Societies 56 ; obtained by 

 purchase or exchange 25 ; deposited by Dr. Thomas B. Wilson 586 ; by Dr. 

 R. E. Griffith 163 ; and by J. Price Wetherill, Esq., 96. Two charts were 

 derived from the TJ. S. Treasury Department ; one from Mr. R. C. Taylor, and 

 one from Dr. Wilson. 



The above statements show a greater increase in the Library during the 

 last twelve months, than has occurred at any period since that in which it re- 

 ceived the noble contributions of its early benefactor William Maclure. It 

 will be seen also how very large a proportion of the whole number of additions 

 has been derived from our fellow member Dr. Wilson. From a reluctance to 

 occupy the time of the Society too long with this report,I refrain from a reca- 

 pitulation of the titles of the numerous splendid works deposited by this gentle- 

 man, and must content myself therefore with referring those, who may be de- 

 sirous of forming some estimate of their great value, both in actual cost, and as 

 works of Science, to the printed Proceedings, in which they have been already 

 fully announced. Nearly all of them have been imported from abroad expressly 



