Classification
P - Language and Literature
491
D - World History
282
H - Social Science
145
B - Philosophy, Psychology, Religion
42
J - Political Science
33
K - Law
29
R - Medicine
23
L - Education
17
N - Fine Arts
10
Z - Library Science
9
S - Agriculture
7
A - General Works
6
G - Geography, Anthropology, Recreation
6
U - Military Science
6
Q - Science
5
F - General American History
4
M - Music
4
C - Historical Sciences
2
T - Technology
2
V - Naval Science
2
E - United States History
1