CLASSIFICATION
M - Music
16,402
C - Historical Sciences
4,677
L - Education
2,801
T - Technology
392
F - General American History
175
G - Geography, Anthropology, Recreation
164
P - Language and Literature
157
B - Philosophy, Psychology, Religion
66
D - World History
46
N - Fine Arts
39
V - Naval Science
31
Z - Library Science
25
H - Social Science
21
R - Medicine
16
S - Agriculture
12
Q - Science
11
E - United States History
7
A - General Works
5
K - Law
4
J - Political Science
3