JOURNAL OF PROCEEDINGS. 19 
near Vicksburg, some of which were identical with species found 
with the Zeuglodon. 
Dr. Koch presented to the Academy a large and valuable col- 
lection of Cretaceous and Tertiary fossils, which he had obtained, 
in the course of his tour, in the States of Mississippi and Arkan- 
sas. Among these were specimens of Exogyra ponderosa, rca, 
Baculites, Hamites, Turrilites, Pinna, and claws of a Crustacean 
of the genus Callianassa. 
A copy of the first and second Reports of the Geological Sur- 
vey of Missouri, by Prof. G. C. Swallow, State Geologist, was 
presented by Dr. Pope; and some catalogues of recent and fossil 
shells, zoophytes, and minerals, were presented, through Mr. 
Holmes, by Fred. S. Cozzens, Esq. 
Major M. L. Clark exhibited an instrument called the Roto- 
scope, which he presented to the Academy. Dr. Tingley pre-_ 
sented specimens of limestone from Walnut Creek, Kansas Ter. 
and Dr. B. F. Shumard, a scorpion, from Syria. 
June 16, 1856. 
The President, Dr. Excrumans, in the chair. 
Letters were read from Prof. A. D. Bache, and Prof. Joseph 
Henry, of of Washington, D. C., from Dr. J. L. Le Conte, of at 3 
, and from Dr. J.G. Nome ee, Ils., € 
ie Swallow, F.V 7 Heyden, M. D., and 2 Mer 
$ ny A. Giroux, C. YY : 
: ,and A. Kip 
