THE INTERPRETER 121 



The differences in the body and limbs of Man and 

 Gorilla at once strike the eye. The trunk of the 

 latter is larger, the lower limbs shorter, the upper 

 limbs longer, and the brain-case smaller, than in Man. 

 In the " nobler and more characteristic organ," the 

 skull, the differences are " immense." The face of 

 the Gorilla has massive jaw-bones and predominates 

 over the brain-case ; in Man these proportions are 

 reversed. The surface of the human skull is com- 

 paratively smooth, the brow prominences or ridges 

 project very little ; in the Gorilla " vast crests are 

 developed upon the skull, and the brow-ridges over- 

 hang the cavernous orbits like great pent-houses. 

 The smallest cranium observed in any race of Man 

 measures 63 cubic inches ; while the most capacious 

 Gorilla skull measures not more than 34^ cubic 

 inches. Striking as are these differences, their force 

 is somewhat impaired in view of the differences be- 

 tween men themselves. The difference in the volume 

 of the cranial cavity of the various races of mankind 

 is far greater, absolutely, than that between the lowest 

 Man and the highest Ape, while, relatively, it is about 

 the same. For the largest human skull contained 114 

 cubic inches — that is to say, had very nearly double 

 the capacity of the smallest — while its absolute pre- 

 ponderance of 51 cubic inches is far greater than 

 that by which the lowest adult male human cranium 



