50 [July, 1841. 



STATED MEETING, July 6, 1841. 

 Vice President Morton in the Chair. 



DONATIONS TO THE LIBRARY. 



Fifth Geological Report of the State of Tennessee. By G. 

 Troost, M. D. 8vo. From the Author. 



Documents relating to the Geological Survey of New York. 

 (No. 150.) 8vo. 1841. From Mr. Vanuxem. 



Etwas uber die Natur-Wunder in Nord America. Von Charles 

 Cramer. 8vo. St. Petersburg, 1841. From the Author. 



Description of an entire Head and other bones of the Masto- 

 don. By W. E. Horner, M.D., and I. Hays, M.D. 4to. 

 Philad. 1841. From the Authors. 



Annales des Mines. Tome X VII. Received in exchange. 



The Silurian System ; from the Edinburgh Review ; April, 

 1841. From the Author. (Anon.) 



Written Communications. The Corresponding Secretary 

 read a letter from Mr. Benjamin Silliman, Jr., acknowledging 

 the receipt of a letter announcing his election as a correspond- 

 ing member. 



Verbal Communications. Dr. Morton (Prof. Johnson taking 

 the chair,) made the following communication. 



" I submit to the inspection of the members eight skulls of the 

 ancient Mexican race, for six of which 1 am indebted to Don J. 

 Gomez de la Cortina, and for the other two to Dr. John P. Macartney 

 of the city of Mexico. All these crania have been received since 

 the publication of my Crania Americana. 



The skulls are of the following nations. 

 1. Otomies. Four in number, with the high vertex, flat occiput, 



