Classification
H - Social Science
1,810
M - Music
463
S - Agriculture
137
F - General American History
117
R - Medicine
83
L - Education
72
E - United States History
71
D - World History
55
T - Technology
52
G - Geography, Anthropology, Recreation
39
C - Historical Sciences
27
Q - Science
27
B - Philosophy, Psychology, Religion
23
J - Political Science
18
Z - Library Science
18
P - Language and Literature
13
A - General Works
11
N - Fine Arts
9
K - Law
7
U - Military Science
1