Classification
H - Social Science
1,160
M - Music
1,141
S - Agriculture
246
L - Education
131
J - Political Science
81
T - Technology
72
Q - Science
55
D - World History
52
B - Philosophy, Psychology, Religion
43
F - General American History
39
Z - Library Science
34
G - Geography, Anthropology, Recreation
31
K - Law
31
P - Language and Literature
20
U - Military Science
9
R - Medicine
8
N - Fine Arts
7
A - General Works
4
V - Naval Science
2