Classification
H - Social Science
109
M - Music
28
B - Philosophy, Psychology, Religion
15
C - Historical Sciences
14
F - General American History
14
P - Language and Literature
12
A - General Works
11
R - Medicine
6
Z - Library Science
3
D - World History
2
S - Agriculture
2
T - Technology
2
E - United States History
1
J - Political Science
1