Classification
P - Language and Literature
22,228
M - Music
4,957
F - General American History
3,509
A - General Works
738
D - World History
583
H - Social Science
483
S - Agriculture
323
B - Philosophy, Psychology, Religion
308
J - Political Science
131
N - Fine Arts
114
L - Education
98
K - Law
77
R - Medicine
39
E - United States History
29
Q - Science
26
Z - Library Science
23
U - Military Science
21
G - Geography, Anthropology, Recreation
18
T - Technology
13
C - Historical Sciences
9
V - Naval Science
3