Classification
M - Music
79
C - Historical Sciences
72
B - Philosophy, Psychology, Religion
30
D - World History
27
H - Social Science
23
F - General American History
22
R - Medicine
17
E - United States History
10
T - Technology
9
K - Law
6
Q - Science
6
A - General Works
3
S - Agriculture
3
G - Geography, Anthropology, Recreation
2
J - Political Science
2
L - Education
2
P - Language and Literature
2
Z - Library Science
1