Classification
H - Social Science
2,244
M - Music
684
S - Agriculture
423
D - World History
388
T - Technology
332
L - Education
294
J - Political Science
225
Q - Science
213
P - Language and Literature
192
K - Law
181
Z - Library Science
166
R - Medicine
157
N - Fine Arts
134
G - Geography, Anthropology, Recreation
101
A - General Works
89
B - Philosophy, Psychology, Religion
82
C - Historical Sciences
42
U - Military Science
37
F - General American History
22
E - United States History
14
V - Naval Science
12