NATURAL SCIENCES OF PHILADELPniA. 3 



was elected Curator, thus filling the vacancies caused by the death of 

 Mr. Cassin. 



The following gentlemen were elected members : 

 R. J. Levis, M. D., John J. Stevenson, Wm. M. Wilson, and 

 Caleb S. Hallowell. 



The following were elected correspondents : 



Col. E. B. Carling, U. S. A. ; Wm. Blackmore, of London. 



Feb. 9th. 

 Mr. Jos. Jeanes in the Chair. 

 Twenty-two members present. 



Feb. 16th. 



Dr. Ruschenberger, Vice-President, in the Chair. 



Thirty-four members present. 



The following paper was presented for publication : 

 Note on Microscopic Crystals contained in some minerals. By 

 Isaac Lea. 



The death of Chas. N. Bancker was announced. 



Professor Cope made some rem<arks on a new series of fossils, from the lime 

 stone caves in the Southern States. He enumerated the species of extinct 

 mammals, reptiles and fjshes, discovered by him in the lime-stone breccia, 

 ■which is the remnant of a cave in Wythe Co., Virginia. 



He gave twenty species of mammalia, of which nine only could be demon- 

 strated to be different from existing species. These were Megalouyx J e f f e r- 

 s n i i, Stereodectes tortus Cope, Dicotyles nasutus, iMixophagus spe- 

 laeus Cope, gen. et sp. nov., Sciurus panolius Cope, sp. nov., Tamias 

 laevidens Cope, sp, nov., Tapirus haysii, Ursus a m p 1 i d e n s. 

 Hemiacis pe r d ici da Cope, sp. nov. Stereodectes was stated to be based 

 on incisor teeth, which are more solid than in existing allied genera. Its pulp 

 cavity is almost entirely closed throughout a large part of the length of the 

 tooth. General character similar to those of the Marmot; size that of the 

 porcupine. 



[Feb. 2Sd. 

 The President, Dr. Hays, in the Chair. 

 Thirty-six members present. 



The report of the Biological and Microscopical Section was pre- 

 sented. 



The following gentlemen were elected members : Wm. Dutty, 

 Gen. Hector Tyndale, Charles Morris, Theodore Cuyler. 



On favorable report of the Committee, the following paper was 

 ordered to be published : 

 1869.] 



