346 



Catalogue of Coleoptera of the regions adjacent to the boundary line 

 between U. S. and Mexico, by John L. Le Conte, M.D. Philada. 

 1858. (33 pages with plates.) — From the Author. 



Proceedings New Jersey Hist. Soc. VIII. 3. New York, 1858. 8vo. 



On Picric Acid, &c. by M. Carey Lea. Phila. 1858. (7 pages.) 8vo. 



Embryonic forms of thirty-eight species of Unionidre, by Isaac Lea. 

 Phila. 1858. (7 pages.) 4to. — From the Author, 



Smithsonian Contributions. Ancient fauna of Nebraska, by Joseph 

 Leidy. Memoir on the extinct Sloth tribe of America, by the 

 same. Washington, 1858. (200 pages with plates.) 4to. 



The report of the Committee of Finance was read, and the 

 appropriations therein recommended for the ensuing year were 

 ordered to be made, viz: 



Total, ^2250 



The committee appointed at last meeting to suggest the names 

 of officers to be voted for at the annual election of the Society 

 in January next, made a report, which was ordered to be prin- 

 ted and furnished to each resident member. 



Dr. R. E. Rogers made an oral communication in relation to 

 the condition of water when apparently in contact with highly 

 heated surfaces; but which is, in reality, as though suspended 

 in sj)heroi(ls above the heated mass; — and described some ex- 

 periments which led him to infer that the peculiar phenomena 

 observed are due to a repulsion existing between the heated 

 matter and tiie water. 



Prof. Kendall presented a communication from Lieut. CoL 

 J. D. Graham, entitled "Contributions to Geography," which 

 was referred to the reporter for publication in the Proceedings 

 of the Society. 



