CLASSIFICATION
S - Agriculture
584
H - Social Science
155
L - Education
150
Q - Science
61
K - Law
41
T - Technology
28
A - General Works
24
G - Geography, Anthropology, Recreation
24
J - Political Science
10
C - Historical Sciences
8
Z - Library Science
5
F - General American History
3
P - Language and Literature
3
R - Medicine
3
E - United States History
2
V - Naval Science
2
D - World History
1
M - Music
1