Classification
R - Medicine
235
D - World History
95
H - Social Science
78
Q - Science
78
B - Philosophy, Psychology, Religion
41
A - General Works
34
T - Technology
23
G - Geography, Anthropology, Recreation
20
F - General American History
12
S - Agriculture
12
Z - Library Science
11
P - Language and Literature
8
J - Political Science
7
N - Fine Arts
6
C - Historical Sciences
4
L - Education
3
E - United States History
2
U - Military Science
1