4,4 Skeleton of the Gorilla. 



(No. 2.) 

 Foot, 

 muscles of. 

 6. First digit, transversus pedis. 

 a. Second digit, two abductors. 

 e. Third digit, abductor, adductor. 



d. Fourth digit, abductor, adductor. 



e. Fifth digit, adductor. 



MONKEY. 

 (No. 3.) 

 Hand. 



muscles of. 

 «. F'irst digit, opponens. 

 c. Second digit, abductor, adductor. 



a. Third digit, two abductors. 



b. Fourth digit, abductor, adductor, 

 d Fifth digit, adductor, opponens. 



(No. 4.) 

 Foot. 

 muscles of. 

 e. First digit, opponens. 

 e. Second digit, abductor, adductor. 



a. Third digit, two abductors. 



b. Fourth digit, abductor, adductor. 

 d. Fifth digit, adductor, opponens. 



Tables Nos. 1, 8, and 4 are alike, so that if the digits of the 

 hand of man be fingers, so must they be in both hand and foot 

 of monkey, for ' things which are equal to the same are equal 

 to one another.' No. 2, however stands by itself the foot of man. 

 But I must tell yon, gentlemen, that my views are not gen- 

 erally received. It is supposed I do not know these "muscles 

 when I see them. A reviewer in the Lancet, December 12, 

 1863, says tfiat he has found the ' transversus pedis muscle 

 largely developed in macacus rhesus' And further on, speak- 

 ing of the opponens pollicis, he adds : ' So far as we have 

 been able to ascertain, no author has hitherto described this 

 muscle in the hinder extremity of any animal, and we have 

 never ourselves been able to find any trace of it, though we 

 have recently examined several monkeys with this special 

 object in view.' Now, I should be very sorry to mislead this 

 Society, but I affirm that the ' opponens pollicis ' exists in. 

 in every macaque I have examined, and that the ' transversus 

 pedis ' does not ; and, moreover, all the muscles referred to in 

 these tables have been most careful!}^ examined, and their 



