Classification
D - World History
227
M - Music
193
F - General American History
173
P - Language and Literature
136
H - Social Science
59
E - United States History
37
B - Philosophy, Psychology, Religion
23
C - Historical Sciences
17
S - Agriculture
14
Z - Library Science
13
Q - Science
12
G - Geography, Anthropology, Recreation
8
R - Medicine
8
N - Fine Arts
7
T - Technology
4
K - Law
3
A - General Works
2
J - Political Science
2