Classification
H - Social Science
37
S - Agriculture
33
M - Music
21
L - Education
10
J - Political Science
4
B - Philosophy, Psychology, Religion
2
T - Technology
2
D - World History
1
F - General American History
1
G - Geography, Anthropology, Recreation
1
N - Fine Arts
1
P - Language and Literature
1
R - Medicine
1
Z - Library Science
1