Classification
H - Social Science
196
C - Historical Sciences
113
P - Language and Literature
109
S - Agriculture
56
Q - Science
52
M - Music
42
D - World History
41
R - Medicine
41
A - General Works
32
L - Education
18
T - Technology
15
B - Philosophy, Psychology, Religion
14
F - General American History
14
G - Geography, Anthropology, Recreation
10
N - Fine Arts
8
J - Political Science
6
K - Law
6
E - United States History
3
Z - Library Science
3
U - Military Science
1