Classification
M - Music
4,979
H - Social Science
2,126
F - General American History
1,751
D - World History
913
P - Language and Literature
626
A - General Works
592
S - Agriculture
430
J - Political Science
317
B - Philosophy, Psychology, Religion
305
L - Education
202
N - Fine Arts
177
Z - Library Science
156
K - Law
138
T - Technology
115
R - Medicine
107
Q - Science
63
G - Geography, Anthropology, Recreation
60
E - United States History
37
U - Military Science
34
V - Naval Science
7
C - Historical Sciences
4