138 MAN AND THE LOWER ANIMALS II 



at once informs us of the relations of their con- 

 tents. Now in man, in all the old world, and in 

 all the new world Simise, with one exception, when 

 the face is directed forwards, this line of attachment 

 of the tentorium, or impression for the lateral 

 sinus, as it is technically called, is nearly hori- 

 zontal, and the cerebral chamber invariably over- 

 laps or projects behind the cerebellar chamber. 

 In the Howler Monkey or Mycetes (see Fig. 17), 

 the line passes obliquely upwards and backwards, 

 and the cerebral overlap is almost nil ; while in 

 the Lemurs, as in the lower mammals, the line is 

 much more inclined in the same direction, and the 

 cerebellar chamber projects considerably beyond 

 the cerebral. 



When the gravest errors respecting points so 

 easily settled as this question respecting the 

 posterior lobes, can be authoritatively propounded, 

 it is no wonder that matters of observation, of no 

 very complex character, but still requiring a certain 

 amount of care, should have fared worse. Any 

 one who cannot see the posterior lobe in an ape's 

 brain is not likely to give a very valuable opinion 

 respecting the posterior cornu or the hippocampus 

 minor. If a man cannot see a church, it is pre- 

 posterous to take his opinion about its altar-piece 

 or painted window so that I do not feel bound to 

 enter upon any discussion of these points, but 

 content myself with assuring the reader that 

 the posterior cornu and the hippocampus minor, 



