in THE NEANDERTHAL MAN. 181 



preceding Essay, the posterior lobe of the brain; 

 ' and hence, the occipital protuberance, and the 

 curved line in question, indicate, approximately, 

 the lower limits of that lobe. Was it possible for 

 a human being to have the brain thus flattened 

 and depressed; or, on the other hand, had the 

 muscular ridges shifted their position? In order 

 to solve these doubts, and to decide the question 

 whether the great supraciliary projections did, or 

 did not, arise from the development of the frontal 

 sinuses, I requested Sir Charles Lyell to be so good 

 as to obtain for me from Dr. Fuhlrott, the pos- 

 sessor of the skull, answers to certain queries, and 

 if possible a cast, or at any rate drawings, or photo- 

 graphs, of the interior of the skull. 



Dr. Fuhlrott replied, with a courtesy and readi- 

 ness for which I am infinitely indebted to him, to 

 my inquiries, and furthermore sent three excellent 

 photographs. One of these gives a side view of the 

 skull, and from it Fig. 25 A has been shaded. The 

 second (Fig. 26 A) exhibits the wide openings of 

 the frontal sinuses upon the inferior surface of 

 the frontal part of the skull, into which, Dr. Fuhl- 

 rott writes, " a probe may be introduced to the 

 depth of an inch," and demonstrates the great 

 extension of the thickened supraciliary ridges be- 

 yond the cerebral cavity. The third, lastly (Fig. 

 26 B), exhibits the edge and the interior of the 

 posterior, or occipital, part of the skull, and shows 

 very clearly the two depressions for the lateral si- 



