1897.] NATURAL SCIENCES OF PHILADELPHIA. 513 



appointed to fill the vacancy. He held the professorship until 

 1885, when he resigned because of increased professional work. 

 He was emeritus professor of the Institutes until 1891, when, on the 

 death of Dr. Leidy, he resumed his old position in the Auxiliary 

 Faculty which he held until last year. He also served for one year 

 as Director of the Wistar Museum. 



On establishing himself in Philadelphia at the close of the war, 

 he at first engaged in the practice of general surgery. His love of 

 minute detail caused him to concentrate his attention on the affec- 

 tions of the upper air passages, his inclination to do so being, per- 

 haps, obscurely the result of his early dental studies. So successful 

 was he in his specialty that he soon became a recognized authority 

 in laryngology and rhyuology, the latter science having, it may al- 

 most be said, originated in his diagnosis of disturbances of the nasal 

 mucous membranes and his careful descriptions of departures from 

 the normal anatomy of the facial region. 



His professional and zoological work were equally distinguished 

 by untiring care in the elaboration of minute details, a characteris- 

 tic as evident in his first descriptions of bats as in his most recent 

 craniological studies. Had Dr. Allen been an artist instead of a 

 physician he would have been a Meissonier rather than a Makart. 



The scope of Dr. Allen's interest in professional and scientific 

 work is clearly indicated by the positions he held in the Academy 

 and elsewhere, a brief statement of which is all that can be here 

 given : — 



He was assistant to Wills' Eye Hospital from 1868 to 1870 ; Sur- 

 geon to St. Joseph's Hospital from 1870 to 1878 and visiting sur- 

 geon to the Philadelphia Hospital from 1874 to 1878. 



He held the position of Professor of Anatomy in the Philadelphia 

 Dental College from 1866 to 1878. He was Vice-President of the 

 Pathological Society of Philadelphia in 1877 ; President of the 

 American Laryngological Association in 1886, of the American 

 Association of Anatomists from 1891 to 1893, and of the Anthro- 

 pometric Society at the time of his death. He served as judge in 

 the Section of Anthropology at the Columbian Exposition in 1893, 

 and was a member of the American Philosophical Society, the Bos- 

 ton Society of Natural History, the Biological Society of Washing- 

 ton, the Philadelphia County Medical Society, the Neurological So- 

 ciety of Philadelphia, the Historical Society of Texas, and Corre- 

 sponding Member of the Society of Natural Sciences of Chili. He 

 served as President of the Contemporary Club in 1894-1895. 



