Classification
S - Agriculture
390
M - Music
76
H - Social Science
66
F - General American History
12
L - Education
9
B - Philosophy, Psychology, Religion
7
J - Political Science
5
D - World History
3
U - Military Science
3
N - Fine Arts
2
Q - Science
2
T - Technology
2
A - General Works
1
C - Historical Sciences
1
E - United States History
1
G - Geography, Anthropology, Recreation
1
P - Language and Literature
1
R - Medicine
1
V - Naval Science
1