Classification
H - Social Science
234
R - Medicine
96
S - Agriculture
61
M - Music
56
P - Language and Literature
49
B - Philosophy, Psychology, Religion
43
A - General Works
35
D - World History
23
C - Historical Sciences
21
F - General American History
12
J - Political Science
3
L - Education
2
E - United States History
1
G - Geography, Anthropology, Recreation
1
T - Technology
1