Classification
H - Social Science
155
Q - Science
48
P - Language and Literature
38
T - Technology
37
C - Historical Sciences
31
Z - Library Science
30
B - Philosophy, Psychology, Religion
23
E - United States History
16
D - World History
14
K - Law
14
J - Political Science
11
A - General Works
10
L - Education
6
S - Agriculture
6
F - General American History
4
G - Geography, Anthropology, Recreation
3
R - Medicine
2
M - Music
1
N - Fine Arts
1