Classification
P - Language and Literature
65
F - General American History
31
H - Social Science
22
M - Music
21
D - World History
14
N - Fine Arts
14
Q - Science
11
J - Political Science
8
K - Law
7
S - Agriculture
7
R - Medicine
6
B - Philosophy, Psychology, Religion
4
A - General Works
2
C - Historical Sciences
2
L - Education
2
T - Technology
2
G - Geography, Anthropology, Recreation
1
V - Naval Science
1