Classification
D - World History
346
R - Medicine
267
M - Music
194
P - Language and Literature
160
G - Geography, Anthropology, Recreation
134
Q - Science
129
B - Philosophy, Psychology, Religion
86
A - General Works
45
E - United States History
33
H - Social Science
32
C - Historical Sciences
29
S - Agriculture
20
F - General American History
18
T - Technology
16
V - Naval Science
16
K - Law
7
N - Fine Arts
5
Z - Library Science
5
J - Political Science
4
U - Military Science
3