Classification
P - Language and Literature
292
Q - Science
131
H - Social Science
64
S - Agriculture
64
T - Technology
63
D - World History
26
G - Geography, Anthropology, Recreation
24
B - Philosophy, Psychology, Religion
20
L - Education
13
R - Medicine
12
K - Law
10
M - Music
9
N - Fine Arts
8
U - Military Science
5
J - Political Science
4
Z - Library Science
4
A - General Works
3
F - General American History
2
V - Naval Science
1