9 



Franklin Institute ; American Journal of Pharmacy ; Penn 

 Monthly ; the Department of the Interior ; the California 

 Academy of Natural Sciences ; and Prof. S. S. Ilaldeman. 



Prof. Cope offered for publication in the Transactions a 

 paper entitled, " A Su|)plement to the Extinct Batrachia 

 and Reptilia of North America." 



On motion, the paper was referred to a Committee, con- 

 sisting of Prof. Leidy, Dr. ISTewberry, and Mr. Lesley. 



Dr. Genth communicated some valuable results of recent 

 analyses of limonites and limestones of the Lower Silurian 

 district of Centre, Blair, and Huntino-don Counties, Penn- 

 sylvania. (See page 84.) 



Mr. Lesley communicated the results of his recent topo- 

 graphical and structural study of the same district. 



Prof. Chase developed some views of the relationships 

 existing between the velocity of light waves in ether, and 

 the velocities of the sun and planets, entitled, " A note on 

 the Origin of Attractive force, Identifying the Velocity of 

 Primitive Grravitating Impulse with the Velocity of Light." 



New nominations Nos. 745, 746, and 747 were read. 



And the meeting was adjourned. 



Stated Meeting, February 20th, 1874. 



Present, 18 members. 



Vice-President, Mr. Fraley, in the Chair. 



Mr. "Wootten, a newly elected member, was introduced to 

 the presiding officer, and took his seat. 



A letter of envoy was received from the American Insti- 

 tute of Mining Engineers, dated Feb. 12th, 1874. 



Donations for the Library were received from the R. 

 Prussian Academy ; Revue Politique ; London Nature ; Mr. 

 A, J. Packard, Jr. ; Boston Soc. N. H, ; New York Lyceum ; 



A. p. 8. — VOL. XIV. B 



