THE INCORPORATORS 159 
fessor of Natural History in Swarthmore College, in Swarth- 
more, Pennsylvania. 
In 1881 he was chosen President of the Academy of Natural 
Sciences of Philadelphia; in 1884, Director of the Biological 
Department of the University of Pennsylvania; and in 1886, 
President of the Wagner Free Institute. Among the honors 
he received at this period should be mentioned the Walker 
Prize (which was doubled in special recognition of his services), 
the prize of the Royal Microscopical Society, the Lyell Medal 
of the Royal Geological Society, and the Cuvier Medal of the 
Academy of Sciences of Paris. 
“The bare enumeration of his published works, extensive in 
length and in variety though it be, would give those who had 
never seen this great naturalist no idea of the man or of the 
source of this combination of versatility and accuracy which 
rendered almost every observation he made directly or indi- 
rectly an addition to science. In all that pertained to the acquisi- 
tion of facts and to codrdinating them afterwards he made of 
himself a perfect machine in so far as he was insensible to and 
unaffected by the ordinary passions of ambition or rivalry which 
influence even the best scientists. He had a marvelous eye for 
noting the minutest phenomena and appreciating the most 
insensible differences; he had an unusually retentive memory for 
recording and keeping in order the vast fund of his observations 
and the records of those made by others; and he was conscious 
of the limitations of pure inductive philosophy to an extent 
which made the conclusions reached by him safe.” (Frazer.) 
During the Civil War Dr. Leidy acted as surgeon of the 
Satterlee Hospital in Philadelphia. Leidy’s name is not only 
remembered by his remarkable contributions to anatomy, 
paleontology, and other sciences, but in the lofty Rockies stands 
“Mt. Leidy,” named by Dr. Hayden, the distinguished explorer 
and geologist; and “ Cape Leidy,” on the coast of Grinnell Land 
is a token of the devotion of Drs. Kane and Hayes to their college 
friend. 
