Classification
H - Social Science
533
S - Agriculture
148
P - Language and Literature
125
R - Medicine
120
M - Music
99
B - Philosophy, Psychology, Religion
79
A - General Works
48
D - World History
30
C - Historical Sciences
28
F - General American History
23
E - United States History
6
T - Technology
2
Z - Library Science
2
G - Geography, Anthropology, Recreation
1
K - Law
1
N - Fine Arts
1