Classification
H - Social Science
209
C - Historical Sciences
93
M - Music
51
D - World History
33
L - Education
33
S - Agriculture
30
J - Political Science
25
Q - Science
20
F - General American History
16
K - Law
11
R - Medicine
11
B - Philosophy, Psychology, Religion
8
T - Technology
8
Z - Library Science
6
P - Language and Literature
5
E - United States History
3
G - Geography, Anthropology, Recreation
3
N - Fine Arts
2
A - General Works
1