Classification
M - Music
32
S - Agriculture
22
H - Social Science
19
Q - Science
18
J - Political Science
15
P - Language and Literature
11
K - Law
10
E - United States History
7
R - Medicine
7
D - World History
6
L - Education
6
T - Technology
6
A - General Works
4
F - General American History
4
Z - Library Science
2
B - Philosophy, Psychology, Religion
1
C - Historical Sciences
1
G - Geography, Anthropology, Recreation
1
N - Fine Arts
1
U - Military Science
1