STUDY OF BRAINS OF SIX EMINENT SCIENTISTS AND SCHOLARS. 



299 



bral localization seem to justify. Cope was more creative and constructive, philosophic 

 and formative than Leidy ; Leidy was a far keener observer of things, quick at seeing 

 analogies, and comparisons, .coupling his multitudinous observations into generaliza- 

 tions and systematizations in a superior manner. Leidy was a good visualizer, and 



Fig. 75. The upper drawing represents tbe mesal view of the right hemicerebrum ot Professor Leidy ; the lower 

 drawing the same view of the brain of Professor Cope. Cuneiis and precuneus shaded. In the case of Professor Leidy, the 

 area ot the cuneusand precuneus together (shaded) is to that of the frontal lobe (unshaded) as 34 : 66 ; in Professor Cope's, 

 the ratio is as 27 : 73 (these ratios were determined by weighing pieces of sheet-lead carefully cut of exactly the same 

 size). In other words, there is a relative redundancy of the parieto-occipital areas in Professor Leidy, while in Professor 

 Cope it is the frontal area which preponderates. 



possessed good powers of memorizing and recalling visual impressions. He excelled 

 in his abilities as a microscopist, as shown by his monumental work in parasitology, 

 helminthology and upon the rhizopods. But Cope, I take it, busied himself much 

 more with abstract generalizations, though I wish by no means to imply that his 

 observational powers were in any way defective. I merely wish to emphasize in what 

 way these two men were so differently endowed by nature. I had been led to search 



