Classification
H - Social Science
405
M - Music
85
F - General American History
41
E - United States History
40
S - Agriculture
34
D - World History
20
L - Education
16
B - Philosophy, Psychology, Religion
15
C - Historical Sciences
14
R - Medicine
9
J - Political Science
6
T - Technology
5
Z - Library Science
5
G - Geography, Anthropology, Recreation
4
K - Law
3
A - General Works
2
Q - Science
1
V - Naval Science
1