Classification
D - World History
803
R - Medicine
429
B - Philosophy, Psychology, Religion
306
H - Social Science
271
M - Music
238
F - General American History
193
P - Language and Literature
143
A - General Works
101
Q - Science
96
S - Agriculture
96
G - Geography, Anthropology, Recreation
72
Z - Library Science
51
E - United States History
36
J - Political Science
36
C - Historical Sciences
33
T - Technology
30
N - Fine Arts
26
L - Education
21
K - Law
19
U - Military Science
17