99 



COMPARATIVE MEASUREMENTS 



CAMBRIDGE MASTODON AND THE ELEPHANT PIZARRO. 



CRANIUM. 



From the alveolar border to the end of the tusk 

 Insertion of the tusk .... 



Entire length of the tusk 

 Circumference of the sockets of the tusks 

 From the alveolar border to the parietal ridge 

 Height of the parieto-occipital plane 



"Width of the same 



Height from the lower extremity of the pterygoid process 



of the temporal fossa 



Width across the forehead between the temporal ridges 

 Width across the forehead above the nasal foramina 



Depth of the zygomatic fossa 



From the parietal ridge to the extremity of the nasal bone 



to the superior edge 



MASTODON. ELEPHANT. 

 Inches. Inches. 



28 . . 47 



7 

 35 



111 

 38 

 15 

 23 



21 



14 



34 



9 



18 



131 



46 

 26 



27 



26 

 16 



n 



PALATINE PORTION. 

 Length of the bony palate . . . . • 

 Anterior diameter of the palatine fossa .... 

 Middle diameter of the palatine fossa in front of the alveoli 

 Posterior diameter of the palatine fossa behind the alveoli 



!1| . 



. 19 



8 . 



. 



6i 



u 2 



22 



^4 



4 . 



. 5 



