Classification
H - Social Science
176
M - Music
44
S - Agriculture
44
D - World History
32
K - Law
29
Q - Science
12
C - Historical Sciences
10
T - Technology
10
Z - Library Science
8
J - Political Science
6
L - Education
6
F - General American History
5
G - Geography, Anthropology, Recreation
5
A - General Works
4
P - Language and Literature
3
R - Medicine
3
E - United States History
2
B - Philosophy, Psychology, Religion
1