84 The American Geologist. August, i9ou 
was detained over Sunday with his friend, Andrew Longacre, 
a Methodist minister, from inability to reach the Catskills 
after a visit to Howe's cave, 3 or 4 miles west of Schoharie. 
He mentions having attended a small Friends' meeting "just 
possibly Hicksite" in which an aged Friend in his shirt sleeves 
spoke in a very comforting manner. 
In this year appeared five scientific papers. 
During 1864 he received the appointment of professor of 
natural science at Haverford college. The following year 
(1865), he married Anne Pim, daughter of Richard Pim, of 
Chester county, a distant cousin, and took up his residence 
during the three years of his professorship near Haverford 
college. 
He was elected a curator of the Academy of Natural 
Sciences in December of this year (1865), and served until 
December, 1873. 
His scientific publications for 1865 were ten in number. 
In a letter from Haverford, March 29, 1866, he notes that 
in spare times he is writing an account of the structure, species 
and distribution of the tailless batrachians which will be pub- 
lished before long by the Smithsonian Institution. "It will 
cover about 500 species. As soon as it is finished I want to 
get to work at a manual of comparative zoology to- use in 
my class." * * * 
June 16, 1866. From the same place he mentions having 
procured a femur of Hadrosaurus foulkii from West Jersey. 
His scientific publications for 1866 were eleven in number. 
March 26, 1867, he writes from Cambridge, where he is the 
guest of Prof. Louis Agassiz, who put at Cope's service his 
enormous Brazilian collections. The writer was going over 
the East Indian, Australian and African series and proposed 
to bring back many specimens with him — chiefly of batrach- 
ians, of which he wrote the larger part of a complete mono- 
graph last winter. (Journal of the Acad. ) "The reptiles bear 
a small proportion to the fishes which embrace 1300 new and 
all the previously known (700) species." 
July 20, 1867, from Yellow Sulphur springs (Montgomery 
Co., Va.), where he was sojourning temporarily with his wife 
and young daughter, he writes that Dr. Leidy having ex- 
perienced an attack of lumbago, and been ill of the limestone 
