278 



human but the antropoid skull which deviates more and more from 

 its original shape. 



The object of the following communication is to draw the attention 

 to an analogous phenomenon in an entirely di (Teren t part of the 

 skull, namely in the orbital region, and regarding more particularly 

 the following question: what are the topographical relations of the 

 orbits in infantile and adult skulls of Primates? The answer to (his 

 question gives an insight into the phenomena of growth in this 

 border-region between the cerebral and facial skull. These are well 

 fitted to give a definite shape to our conception about the moi'pho- 

 genetic relation between the human and anthropoid skull. In this 



communication the main points 

 on\y will be slated, the more 

 extensive pai)er will be published 

 elsewhere. For the present 

 purpose the best starting-point 

 is a form in which the differ- 

 ences in topography between 

 the infantile and adult skull 

 aie as large as possible, their 

 character thus being clearly 

 revealed. The Gorilla skull 

 serves this purpose well. 

 We shall mainly deal with the topographical relation of the orbits 

 in regard to the cranial cavity. The easiest way of surveying this 



Fig. L 



Fig. 2. 



