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outer condyle of the thigh bone is round instead of being pro- 
longed from before backwards, and flattened beneath, as in Man. 
Hence there is comparatively little security afforded by the 
ligaments in the straight position, and little provision for the 
maintenance of the erect posture. The bones and joints of the 
ankle were shown to be constructed so as to permit free move- 
ment rather than to bear weight. With regard to the term 
“hand,” and the objections which have been urged to its appli- 
cation to the lower limb of the monkey, Professor Humphry 
remarked that if we use the term to designate a certain modifi- 
cation of the fore limb—a certain deviation, that is, from the 
ordinary fore foot—we may with equal propriety apply it to a 
corresponding modification of the hind limb—a corresponding 
deviation, that is, from the ordinary hind foot. We must not 
expect it closely to resemble the human hand, but merely to 
present such a similarity to it as the special features of a hand, 
viz. the shortness, mobility and opposeableness of the thumb and 
the relative length of the other digits, would give it. Judging by 
this rule, it is as correct to speak of the “hind hand” of a monkey 
as of the “fore hand,” though, forasmuch as both are employed in 
progression, it may, perhaps, be better to use some other term, 
such as “cheiropod” for the designation of the class, leaving 
the term “bimanous” to indicate the characteristic feature of 
man. The psychical qualities should not be omitted in con- 
sidering the distinctive features of man; and the importance of 
the long, strong, firm great toe in this respect was pointed out. 
Some other peculiarities in the limbs and in the prostate gland 
of the Chimpanzee were described. 
