Classification
S - Agriculture
1,396
H - Social Science
189
M - Music
118
Q - Science
15
A - General Works
13
Z - Library Science
10
U - Military Science
6
E - United States History
5
F - General American History
5
J - Political Science
4
T - Technology
3
D - World History
2
G - Geography, Anthropology, Recreation
2
N - Fine Arts
2
C - Historical Sciences
1
L - Education
1
P - Language and Literature
1