Classification
H - Social Science
682
M - Music
644
S - Agriculture
211
L - Education
104
T - Technology
56
Q - Science
41
J - Political Science
34
D - World History
28
G - Geography, Anthropology, Recreation
26
F - General American History
25
K - Law
23
B - Philosophy, Psychology, Religion
20
P - Language and Literature
16
Z - Library Science
12
R - Medicine
8
N - Fine Arts
5
A - General Works
4
V - Naval Science
3
U - Military Science
2