COMPARATIVE MEASUREMENTS. 



107 



This bone lias the same triangular form with that of the large skeleton. 

 This form is very peculiar, its parts being defined by three ridges, and 

 therefore more easily compared with the other, from which they do not 

 differ, except in magnitude. 



RADIUS. 



Extreme length 



Circumference of the superior extremity .... 

 Circumference of the inferior extremity .... 

 Circumference of the middle portion .... 



Greatest transverse width of the superior articulating surface 

 Greatest transverse width from before backwards 

 Inferior articulating surface transversely .... 

 Inferior articulating surface antero-posteriorly . 



MASTODON. ELEPHANT. 



Inches. 



Inches. 



23| . 



28 



10 . 



10 



27J . 



m 



5| . 



6| 



3| . 



4| 



2 . 



2| 



6 . 



6 



6 . 



6 



The radius has the same relation to the ulna as in the great skeleton, 

 except that it is situated more in front, covering the ulna by its superior 

 half, whereas in the former it covers only a third of that bone. It has the 

 same form above and below as in the other. 



HAND. 



The bones of the hand in .this skeleton are imperfect, and do not admit 

 of any comparison. 



POSTERIOR EXTREMITY. — OS FEMORIS. 



Greatest length 36 



From the summit of the great trochanter to the lowest part of the external 



condyle 35 



Greatest circumference of the superior extremity of the bone below the head . 27 



Circumference of the shaft 13 



Circumference of the inferior extremity 24 



Circumference of the head of the bone 18 



41 



. 39 



• 29| 



25i 



18 



