Classification
M - Music
971
S - Agriculture
422
H - Social Science
63
F - General American History
34
B - Philosophy, Psychology, Religion
13
E - United States History
8
L - Education
6
J - Political Science
4
A - General Works
2
D - World History
2
N - Fine Arts
2
P - Language and Literature
2
U - Military Science
2
C - Historical Sciences
1
G - Geography, Anthropology, Recreation
1
Q - Science
1
R - Medicine
1
T - Technology
1
V - Naval Science
1