Classification
P - Language and Literature
912
R - Medicine
261
D - World History
255
Q - Science
247
B - Philosophy, Psychology, Religion
232
L - Education
179
H - Social Science
157
M - Music
143
T - Technology
132
A - General Works
122
C - Historical Sciences
112
N - Fine Arts
105
F - General American History
102
E - United States History
84
S - Agriculture
81
J - Political Science
70
Z - Library Science
50
G - Geography, Anthropology, Recreation
38
K - Law
34
U - Military Science
6
V - Naval Science
1