Classification
S - Agriculture
399
M - Music
81
H - Social Science
70
F - General American History
14
L - Education
10
B - Philosophy, Psychology, Religion
7
D - World History
7
J - Political Science
5
C - Historical Sciences
4
U - Military Science
3
N - Fine Arts
2
Q - Science
2
R - Medicine
2
T - Technology
2
A - General Works
1
E - United States History
1
G - Geography, Anthropology, Recreation
1
K - Law
1
P - Language and Literature
1
V - Naval Science
1