Classification
Q - Science
89
R - Medicine
60
T - Technology
50
S - Agriculture
36
A - General Works
32
H - Social Science
30
D - World History
29
E - United States History
16
B - Philosophy, Psychology, Religion
14
Z - Library Science
14
C - Historical Sciences
10
G - Geography, Anthropology, Recreation
10
L - Education
10
M - Music
8
P - Language and Literature
7
F - General American History
5
N - Fine Arts
4
J - Political Science
3
K - Law
1