Classification
M - Music
520
P - Language and Literature
457
R - Medicine
390
D - World History
270
H - Social Science
221
C - Historical Sciences
219
Q - Science
155
B - Philosophy, Psychology, Religion
143
A - General Works
135
F - General American History
115
E - United States History
96
S - Agriculture
89
T - Technology
60
J - Political Science
47
K - Law
42
G - Geography, Anthropology, Recreation
22
Z - Library Science
19
L - Education
14
N - Fine Arts
12
U - Military Science
4
V - Naval Science
1