1879.] NATURAL SCIENCES OF PHILADELPHIA. 57 



arranged in the form of a Y, as in man, and not a T, as has been 

 found to be the case in other specimens. The parotid gland 

 was large, the duct of Steno crossed the masseter. The submax- 

 illary was absolutely very large. The stomach was very human 

 in shape. The length of the small intestine was eight feet, that 

 of the large two and a half. The vermiform appendix measured 

 six and a half inches. The Peyer's patches in small intestine 

 were very striking. There are no valvulse conniventes. There 

 was nothing peculiar about the spleen or pancreas ; in reference 

 to the liver the quadrate lobe was not well differentiated, and the 

 caudate lobe was thick rather than caudate. 1 noticed an inter- 

 esting fact in reference to the peritoneum : When the great omen- 

 tum was raised the transverse colon was seen to be attached to its 

 under surface, as in Man ; whereas in other monkeys and the lower 

 mammals the transverse colon is quite separate from the great 

 omentum. This condition is also seen in the human foetus, but, as 

 development advances in it, the peritoneum covering the trans- 

 verse colon becomes adherent to the great omentum, and ultimately 

 in Man appears as one structure. In this respect the Chimpanzee 

 agrees with Man and differs from the monkeys. I do not know 

 whether this disposition has been observed before in the Chim- 

 panzee or the other anthropoids. I suspect the same' disposition 

 obtains in the Gorilla. 



Respiratory and Circulatory Systems. As is well known, in 

 the male Chimpanzee and the other anthropoids, the ventricles of 

 the larynx are enormously dilated, these pouches extending up 

 into the neck, even under the trapezius muscle and over the breast 

 into the axillse. Noticing during life that the voice of the female 

 Chimpanzee was so much weaker than her mate, I was prepared 

 to find these ventricular pouches very rudimentary, even if devel- 

 oped at all. According to some anatomists these pouches have no 

 influence upon the voice. 



The pouches, however, extended even in the female up to the 

 hyoid bone and base of the tongue. The crico-thyroid, thyroary- 

 tenoid crico-arytenoid, lateralis and posticus, and arytenoid raus: 

 cles were well developed. The inferior vocal cord, or more properly 

 vocal membrane, was of a triangular shape, and quite distinguish- 

 able from the remaining part of the mucous membrane. The right 

 lung was divided into three lobes, the left into two, as in Man. 

 I noticed that the left carotid and left subclavian arteries came 

 5 



