Classification
H - Social Science
194
P - Language and Literature
32
M - Music
22
S - Agriculture
13
D - World History
10
A - General Works
9
F - General American History
8
B - Philosophy, Psychology, Religion
7
R - Medicine
7
J - Political Science
3
U - Military Science
2
C - Historical Sciences
1
E - United States History
1
L - Education
1
N - Fine Arts
1
T - Technology
1