Classification
M - Music
10,408
H - Social Science
2,078
F - General American History
2,001
D - World History
825
S - Agriculture
637
A - General Works
544
P - Language and Literature
416
J - Political Science
359
B - Philosophy, Psychology, Religion
290
L - Education
201
K - Law
184
Z - Library Science
162
N - Fine Arts
146
T - Technology
127
R - Medicine
109
Q - Science
86
G - Geography, Anthropology, Recreation
55
U - Military Science
31
E - United States History
24
C - Historical Sciences
7
V - Naval Science
5