Classification
H - Social Science
609
S - Agriculture
345
D - World History
267
B - Philosophy, Psychology, Religion
259
R - Medicine
244
T - Technology
184
P - Language and Literature
171
Q - Science
154
A - General Works
131
L - Education
123
K - Law
118
M - Music
106
J - Political Science
75
C - Historical Sciences
65
Z - Library Science
42
N - Fine Arts
31
F - General American History
30
G - Geography, Anthropology, Recreation
28
E - United States History
16
U - Military Science
10
V - Naval Science
5