Classification
M - Music
193
H - Social Science
56
D - World History
35
T - Technology
28
C - Historical Sciences
27
L - Education
18
B - Philosophy, Psychology, Religion
15
Q - Science
14
R - Medicine
7
G - Geography, Anthropology, Recreation
6
P - Language and Literature
6
F - General American History
5
J - Political Science
5
Z - Library Science
5
S - Agriculture
4
E - United States History
3
K - Law
3
A - General Works
1