Classification
D - World History
21
M - Music
18
J - Political Science
10
K - Law
10
P - Language and Literature
8
B - Philosophy, Psychology, Religion
6
C - Historical Sciences
5
E - United States History
4
H - Social Science
4
A - General Works
3
R - Medicine
3
N - Fine Arts
2
F - General American History
1
G - Geography, Anthropology, Recreation
1
S - Agriculture
1