Classification
P - Language and Literature
4,471
M - Music
1,696
D - World History
1,050
K - Law
911
H - Social Science
891
F - General American History
456
B - Philosophy, Psychology, Religion
410
A - General Works
357
Q - Science
295
J - Political Science
265
R - Medicine
202
N - Fine Arts
131
C - Historical Sciences
103
E - United States History
77
G - Geography, Anthropology, Recreation
73
T - Technology
73
S - Agriculture
71
Z - Library Science
62
L - Education
48
U - Military Science
20
V - Naval Science
10