Classification
M - Music
5,993
H - Social Science
245
D - World History
133
Z - Library Science
101
S - Agriculture
78
F - General American History
48
A - General Works
45
P - Language and Literature
38
E - United States History
29
J - Political Science
29
B - Philosophy, Psychology, Religion
12
L - Education
12
N - Fine Arts
10
K - Law
6
G - Geography, Anthropology, Recreation
4
T - Technology
3
C - Historical Sciences
2
Q - Science
1
R - Medicine
1
U - Military Science
1