Classification
H - Social Science
165
S - Agriculture
66
M - Music
60
L - Education
59
C - Historical Sciences
32
F - General American History
23
E - United States History
18
R - Medicine
15
B - Philosophy, Psychology, Religion
12
J - Political Science
7
D - World History
6
Z - Library Science
6
N - Fine Arts
4
Q - Science
2
G - Geography, Anthropology, Recreation
1