128 proceedings of the academy of [1880 



February 3. 

 Mr. Meehan, Vice-President, in the chair. 

 Twenty -one persons present. 



February 10. 

 The President, Dr. Ruschenberoer, in the chair. 

 Twenty-six persons present. 

 The death of Adolph E. Borie, a member, was announced. 



Sartorius Muscle of the Gorilla. — Mr. Howard A. Kelly 

 described the sartorius muscle in the right leg of the Gorilla 

 troglodytes (young), from the Ogode river, West Africa, partially 

 dissected, and described b}- Dr. Chapman in the Proc. Acad. Nat. 

 Soi., Phila., 1879. 



The muscle is 10 inches long, and \ inch broad. Tendinous for 

 about ^ inch at its origin, and its insertion. It arises from the 

 iliac bone at the beginning of the middle third of the distance 

 from betw^een the anterior superior spine of the ilium, and the 

 symphysis pubis. Its insertion is on to the inner face of the tibia 

 (which is 5i inches long), 3 inches below the knee joint. 



Six inches from its origin the muscle is reinforced by a muscular 

 slip \ inch in breadth. This slip arises at the lower part of the 

 middle third of the femur, betw^een the origin of the quadriceps 

 extensor, and the insertion of the adductors, it joins the sartorius 

 muscle opposite the knee joint. 



In consulting the literature on the myology of the Gorilla, wo 

 reference to any such slip has been found. Among all the 

 numerous anomalies recorded of this muscle, in the human sub- 

 ject, no corres|)onding variation has been found. 



February IT. 



The President, Dr. Rusghenberger, in the chair. 



Thirty-three persons present. 



A paper entitled " Description of a New Crustacean from the 

 Upper Silurian of Georgia, with remarks upon Calymene Cliv- 

 toni,''' by Anthony W. Vogdes, was presented for publication. 



Germination in Acorns. — Mr. Thomas Meehan referred to 

 some intei'esting facts in the germination of Quercus virens, as 

 brought to his attention by W. St. J. Mazyck, of Georgetown, 



