Classification
M - Music
17,429
P - Language and Literature
12,189
F - General American History
2,486
B - Philosophy, Psychology, Religion
871
Q - Science
342
R - Medicine
254
A - General Works
250
D - World History
249
K - Law
120
C - Historical Sciences
69
Z - Library Science
27
J - Political Science
24
E - United States History
22
G - Geography, Anthropology, Recreation
17
S - Agriculture
17
N - Fine Arts
15
H - Social Science
13
T - Technology
11
L - Education
8
U - Military Science
4