Address in Commemoration of J. W. Bailey. 155 
ning with botany and mineralogy, and passing from these to 
geology, chemistry, and microscopy, he traversed a large portion 
of the fiell of natural science. In the departments more espe- 
_ cially relating to his position at West Point, he held a high rank, 
and his publications show that he introduced many improve 
the most difficult points of analysis and general physics. His 
observations were always of the most careful and accurate char- 
. recollection or mere indefinite statements; thus having always 
ryt 
} 
vol- 
ume containing these, which he denominated ‘‘ Microscopic 
tehes,” is, i 
Sketches,” is, of itself, a surprising evidence of his industry and 
skill. There are four hundred and fifty sheets, containing about 
three thousand ske By his great skill with the pencil he 
ee Sb, 2 2 ° 
of vegetable and animal tissues, and occasionally an entire ani- 
_ talor plant. “In January, 1839, while examining some aquatic 
Plants, bs pe ria 
Rew one, to which Ehrenberg gave the complimentary name 
tronema Baileyi ; and finally he devoted himself with great 
to the varied objects included under the general term Infu- 
vtime see and correct his puper. He, however, sat “ 
«J Possessed himself of all the important works on 3 stag 
ind becam active correspondent of Ehrenberg, 
Ontagne, and very many otbers. Fossil deposits, mind, 
ano, were collected from every quarter for Hivestigatien, 
e the ane a 
ng, Agardh, Quekett, Ralfs, Harvev. Greville, De Brelis- 
