Classification
C - Historical Sciences
84
F - General American History
66
B - Philosophy, Psychology, Religion
52
H - Social Science
47
D - World History
26
E - United States History
26
R - Medicine
26
M - Music
25
T - Technology
16
Q - Science
12
P - Language and Literature
10
J - Political Science
9
S - Agriculture
7
A - General Works
6
N - Fine Arts
5
Z - Library Science
4
G - Geography, Anthropology, Recreation
3
K - Law
3
L - Education
1
U - Military Science
1