CLASSIFICATION
M - Music
14,191
C - Historical Sciences
3,553
L - Education
2,265
T - Technology
371
G - Geography, Anthropology, Recreation
158
F - General American History
146
P - Language and Literature
142
B - Philosophy, Psychology, Religion
65
D - World History
42
N - Fine Arts
37
V - Naval Science
28
Z - Library Science
25
H - Social Science
21
R - Medicine
16
S - Agriculture
11
Q - Science
10
E - United States History
7
A - General Works
5
K - Law
4
J - Political Science
3