8oo The Smithsonian Institution 



More comprehensive than these special works is the " Se- 

 lect Bibliography of Chemistry," compiled by Henry Car- 

 rington Bolton and published in 1893. This volume covers 

 the period 1492 to 1892, and embraces the titles of the prin- 

 cipal books on chemistry published in all parts of the world. 

 For convenience the titles are grouped under seven heads : 



I. Bibliography; II. Dictionaries; III. History; IV. Biog- 

 raphy ; V. Chemistry, pure and applied ; VI. Alchemy ; 

 VII. Periodicals. Within these sections are more than 

 twelve thousand titles in twenty-five languages. 



According to Secretary Langley, it is " a work of reference 

 of such value that it is believed it will be a necessity to every 

 chemical investigator." 



Doctor Bolton has in preparation a supplement which will 

 contain about eight thousand additional titles, including a 

 new section, No. VIII, devoted to "Dissertations and 

 Theses." 



Natural History. Doctor Charles Girard, one of Baird's 

 assistants in natural history, published in 1852 a " Biblio- 

 graphia Americana Historico-Naturalis" for the year 1851. 

 This work includes the doings of American naturalists, the 

 labors of foreign authors in reference to American natural 

 history, and abstracts of papers relating to foreign natural 

 history published in American periodicals. 



Ornithology. In the " Proceedings of the United States 

 National Museum," 1 Elliott Coues published ''Fourth Instal- 

 ment of Ornithological Bibliography, being a List of Faunal 

 Publications relating to British Birds." 2 



This extensive bibliography undertakes to do for British 

 birds what the author had previously done for American 

 birds ; the latter were treated in three previous instalments 

 of this Universal Bibliography of Ornithology ; these are : 



1 Volume n, page 359, 1879. 2 " Miscellaneous Collection," Volume xix. 



