Classification
H - Social Science
298
S - Agriculture
79
M - Music
45
P - Language and Literature
36
D - World History
20
R - Medicine
10
C - Historical Sciences
8
Z - Library Science
7
B - Philosophy, Psychology, Religion
6
F - General American History
5
G - Geography, Anthropology, Recreation
3
A - General Works
1
E - United States History
1