Classification
H - Social Science
83
P - Language and Literature
75
K - Law
50
B - Philosophy, Psychology, Religion
16
C - Historical Sciences
9
M - Music
6
E - United States History
5
F - General American History
3
A - General Works
2
D - World History
1
J - Political Science
1
L - Education
1
R - Medicine
1
S - Agriculture
1
T - Technology
1