Classification
S - Agriculture
2,809
H - Social Science
1,644
P - Language and Literature
1,081
M - Music
622
R - Medicine
458
B - Philosophy, Psychology, Religion
297
A - General Works
198
D - World History
183
C - Historical Sciences
168
F - General American History
146
T - Technology
122
Q - Science
56
K - Law
51
E - United States History
35
G - Geography, Anthropology, Recreation
30
L - Education
26
Z - Library Science
21
J - Political Science
18
N - Fine Arts
10
U - Military Science
6