Classification
P - Language and Literature
257
M - Music
163
B - Philosophy, Psychology, Religion
94
D - World History
71
A - General Works
43
H - Social Science
43
F - General American History
35
R - Medicine
34
C - Historical Sciences
29
Q - Science
26
T - Technology
20
N - Fine Arts
14
K - Law
13
S - Agriculture
10
Z - Library Science
10
E - United States History
9
J - Political Science
9
L - Education
7
U - Military Science
5
G - Geography, Anthropology, Recreation
3