390 PIONEERS OF SCIENCE IN AMERICA. 



praise, and this seemed sufficiently to nettle him, to rouse him 

 thoroughly, and he would become again enthusiastic in the 

 matter of shells and fossils." 



In 1837 Conrad was appointed geologist of the State of 

 New York, and after resigning the position remained as paleon- 

 tologist of the survey until 1842. " He prepared official re- 

 ports on the fossils collected by the United States exploring 

 expedition under Wilkes; by Lieutenant Lynch's expedition 

 to the Dead Sea ; by the Mexican Boundary Survey, and some 

 of the surveys for a railroad route to the Pacific undertaken 

 under the supervision of the War Department. Many papers 

 were written by him on the Tertiary and Cretaceous geology 

 and paleontology of the eastern United States, and published in 

 the American Journal of Science, the Bulletin of the National 

 Institution, the American Journal of Conchology, Kerr's Geo- 

 logical Report on North America, and other publications. A 

 list of Conrad's papers, which covers most of those bearing on 

 paleontological topics, may be found in Miscellaneous Publi- 

 cations of the United States Geological Survey of the Terri- 

 tories, No. 10 ; Bibliography of North American Invertebrate 

 Paleontology, by Drs. C. A. White and H. Alleyne Nicholson 

 Washington, Interior Department, 1878. It contains a hun- 

 dred and twelve titles " (Dall). 



In 1832 Conrad published Fossil Shells of the Tertiary 

 Formations of North America. Illustrated by Figures drawn 

 on Stone from Nature. Vol. I. Philadelphia, 1832. It is dedi- 

 cated to Samuel George Morton, M. D. In 1838 Conrad pub- 

 lished Fossils of the Tertiary Formations of the United States. 

 Illustrated by Figures drawn from Nature. Philadelphia : J. 

 Dobson. These are known generally as the Eocene and Mio- 

 cene volumes, and both, as original editions, are extremely 

 rare. They have recently been reprinted in facsimile, the 

 former by Mr. G. D. Harris, of the Smithsonian Institution, 

 Washington, D. C., and the latter by the Wagner Free Insti- 

 tute, under the editorial supervision of William H. Dall, of the 

 National Museum. In his introduction Prof. Dall says : " Stu- 

 dents of the American Miocene and the later Tertiary deposits 

 of the New World are well aware of the importance to them of 

 Conrad's work, usually referred to by the title of The Medial 

 Tertiary. There can be little doubt that the scarcity of this 

 work and its predecessor, the Eocene volume, is the chief 



