Classification
M - Music
1,293
P - Language and Literature
1,238
H - Social Science
1,024
Q - Science
622
S - Agriculture
609
C - Historical Sciences
425
D - World History
375
T - Technology
297
R - Medicine
295
B - Philosophy, Psychology, Religion
172
F - General American History
140
L - Education
138
E - United States History
119
J - Political Science
113
G - Geography, Anthropology, Recreation
111
A - General Works
94
K - Law
92
N - Fine Arts
41
Z - Library Science
35
U - Military Science
13
V - Naval Science
1