Classification
D - World History
162
F - General American History
102
R - Medicine
101
M - Music
74
B - Philosophy, Psychology, Religion
57
C - Historical Sciences
33
H - Social Science
25
E - United States History
15
J - Political Science
14
Z - Library Science
13
A - General Works
12
G - Geography, Anthropology, Recreation
9
S - Agriculture
6
P - Language and Literature
5
Q - Science
5
T - Technology
5
K - Law
4
L - Education
4
N - Fine Arts
4
U - Military Science
3
V - Naval Science
1