Classification
P - Language and Literature
45
M - Music
41
H - Social Science
16
G - Geography, Anthropology, Recreation
13
A - General Works
9
Q - Science
9
T - Technology
8
J - Political Science
7
E - United States History
6
L - Education
4
N - Fine Arts
4
B - Philosophy, Psychology, Religion
3
K - Law
3
F - General American History
2
R - Medicine
2
C - Historical Sciences
1
S - Agriculture
1