Classification
M - Music
21
E - United States History
17
D - World History
12
R - Medicine
4
A - General Works
3
B - Philosophy, Psychology, Religion
3
P - Language and Literature
3
Z - Library Science
3
H - Social Science
2
T - Technology
2
F - General American History
1
J - Political Science
1
K - Law
1
N - Fine Arts
1
V - Naval Science
1