Classification
H - Social Science
143
M - Music
28
Q - Science
17
S - Agriculture
17
L - Education
13
D - World History
11
J - Political Science
9
N - Fine Arts
8
T - Technology
7
K - Law
6
P - Language and Literature
6
A - General Works
4
C - Historical Sciences
3
F - General American History
3
Z - Library Science
3
B - Philosophy, Psychology, Religion
2
R - Medicine
2
U - Military Science
2
E - United States History
1
G - Geography, Anthropology, Recreation
1