122 



[Dec. 



The fourth premolar has four demicones, but the Internal posterior one is rudi- 

 mentary. The third has two demicones; the external large, the internal small. 

 The second form, but a single cusp. The inferior true molars in general form re- 

 semble those of Merycoidodon, but may at a glance be distinguished by the pos- 

 terior edge of the postero-external demicone bifurcating before it terminates, 

 sending one arm to join the internal angle of the posterior internal demicone ; the 

 other to join its posterior external face about the centre. 



Length of range of superior six molars, 3 in. 1 line. 



" < inferior posterior five molars, . . . 3 " 1 " 



Breadth efface from one superior posterior molar to the other, 2 " 10 " 



The species he called A. antiquus. 



3. PALiEOTHEPauM. Remains of this genus have been previously discovered in 

 this country. Dr. Prout in Silliman's Journal, Vol. 3, n. s., p. 248, describes a 

 fragment of an inferior maxilla of a species larger than the P. magnum of 

 Cuvier. The species, for distinction, may be named P. Proutii. 



A second species was founded upon the cranium and a portion of the face con- 

 taining the true molars ; and the six superior and inferior molars of both sides of 

 another individual. This species is about two-thirds the size of P. crassum. The 

 arrangement of the superior molars is very like that of Paleotherium Hippoides. 

 Length of range of seven superior molars, .... 2 8-10 inches. 



*' seven inferior " .... 3 " 



Breadth of face on line with posterior superior molars, . 2i " 



This second species Dr. L. named P. Bairdii, in honor of Prof. S. F. Baird, 

 Curator of the Smithsonian Institution. 



Dr. Morton commenced a series of remarks on the embalmed heads 

 of Man, and the inferior animals from the Egyptian Catacombs ; previ- 

 ously to which, he exhibited a drawing made from one of the former, 

 which delineated with truthful pre- 

 cision the peculiar characteristics 

 of the Egyptian conformation. 

 The accompanying cut has been 

 made from the drawing : -,,,,, 



m 



He called the attention of the Society 

 to the fact, that the mummied body 

 unwrapped by Mr. Gliddon, in Boston, 

 during the past year, is unequivocally 

 identified with the reign of Osorkon IH, 

 by finding the cartouche or oval of that 

 King stamped in four different places on 

 a leather cross, placed diagonally on 

 the thorax in front. 



Osorkon belongs to the XXII Dynas- 

 ty, and his reign is placed between the 

 years 890 and 905 B. C; consequently 

 the present individual, who was Theban, 

 dates back about 2730 years. The physical characteristics are admirably in ac- 



