Classification
H - Social Science
609
T - Technology
474
S - Agriculture
430
Q - Science
348
B - Philosophy, Psychology, Religion
313
R - Medicine
275
A - General Works
174
D - World History
173
P - Language and Literature
140
L - Education
122
K - Law
111
M - Music
89
J - Political Science
76
Z - Library Science
61
C - Historical Sciences
60
N - Fine Arts
34
G - Geography, Anthropology, Recreation
30
E - United States History
15
V - Naval Science
9
F - General American History
8
U - Military Science
5