Classification
D - World History
262
P - Language and Literature
156
B - Philosophy, Psychology, Religion
79
H - Social Science
56
F - General American History
41
K - Law
39
M - Music
28
E - United States History
26
J - Political Science
24
Z - Library Science
20
Q - Science
17
C - Historical Sciences
15
G - Geography, Anthropology, Recreation
14
L - Education
13
N - Fine Arts
13
R - Medicine
11
A - General Works
7
T - Technology
6
S - Agriculture
5
V - Naval Science
3
U - Military Science
1