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THE AMERICAN NATURALIST [Vol. XLIV 



position which he demands for the hind limbs the toes 

 of the latter necessarily point outwardly. The accom- 



panying diagram (Fig. 16) shows you the position which 

 the hind feet and the fore feet assume when placed as 

 Professor Tornier demands they shall be placed. Now, 

 attributing to the humerus backward and forward mo- 

 tion in a horizontal plane, you will see, as the dotted 

 lines in the diagram show, the result which is reached 

 when the humerus is thrown into a line parallel with the 

 line given to the femur. The toes of the manus point 

 inward and backward. The animal was "pigeon-toed" 

 in front, while its hind feet were planted like those of a 

 greuadier. The animal moved forward with the hind- 

 feet, moved backward with its fore feet. If Tornier is 

 right it must necessarily have been somewhat "balled 

 up." 



The Berlin critic denies the possibility of a backward 

 and forward movement of the humerus in the scapula 

 in a vertical plane. As an actual fact, in the judgment of 



