Classification
D - World History
612
R - Medicine
390
F - General American History
377
B - Philosophy, Psychology, Religion
211
H - Social Science
198
P - Language and Literature
119
M - Music
80
Z - Library Science
69
L - Education
62
Q - Science
44
A - General Works
35
C - Historical Sciences
32
J - Political Science
29
U - Military Science
25
S - Agriculture
19
T - Technology
19
E - United States History
17
G - Geography, Anthropology, Recreation
17
K - Law
15
N - Fine Arts
11
V - Naval Science
6