Zt'l .STUDV III' liKAINS OF SIX EMINENT SCIENTISTS AND SCHOLARS. 



North America, on crania from the Hawaiian Islands and congenital malformations 

 are most notable. He was professor of zoology and comparative anatomy in the Uni- 

 versity of Pennsylvania from 1865 to 1876 ; professor of physiology from 1878 to 1885 ; 

 jn'ofessor of comparative anatomy and zoology, 1891-96. Dr. Allen was an active or 

 corresponding member of numerous scientific societies in this and in other countries, 

 and was President of the American Society of Naturalists in 1887 and in 1888. A 

 large part of his work was done at the Academy of Natural Sciences of Philadelphia 

 and published in its proceedings. He was President of the Contemporary Glulj of 

 Philadelphia ; Curator of the Wistar Institute of Anatomy ; President of the Anthro- 

 pometric Society, and succeeded Professor Joseph Leidy as President of the Association 

 of American Anatomists. 



Dr. Allen died November 14, 1898. As a member of the Anthropometric Society 

 he directed- that his brain should be entrusted to that organization ; his body was cre- 

 mated. The autopsy revealed the cause of his death as heart failure, due to fatty 

 degeneration ; he had in his later years also been subject to rheumatism. 



(For further details see biography by B. G. Wilder, Proceedings of Association of 

 American Anatomists, December, 1897; also Science, pp. 262-265, 1898.) 



The Brain. 

 The weight of the encephalon, after having been immersed for 15 minutes in a 

 mixture of water, formalin and alcohol, was 54 ounces avoirdupois, or 1531 grams, a 

 weight which closely approaches that of C'ope. After having lain immersed for nearly 

 six years and after the removal of tlie pia from tlie cerel^ral halves, the weight of the 

 encephalic parts was as follows : 



Left hemicerebrum . . . . . . . 



Eiglit " 



Cerebellum ........ 



Pons and oblongata ........ 



1248 grams. 



The loss in weight amounts to 283 grams or 18.4 per cent, of the original weight. 



The Cerebrum. 

 The entire brain has unfortunately suffered much distortion. It had rested upon 

 its ventral surface so that the cerebellum pressed up against the caudal parts of the 

 cerebral halves, flattening these considerably and spreading the occipital poles apart. 

 The distortion is such that measurements are of no value except with reference to iso- 

 lated and unaffected regions and of single fissures. The acconi[)anyiiig drawings I'ep- 



