Signum
H - Social Science
490
P - Language and Literature
341
K - Law
189
Q - Science
183
T - Technology
147
L - Education
133
B - Philosophy, Psychology, Religion
120
R - Medicine
71
G - Geography, Anthropology, Recreation
64
F - General American History
58
J - Political Science
47
D - World History
39
N - Fine Arts
35
Z - Library Science
21
S - Agriculture
17
M - Music
11
U - Military Science
10
C - Historical Sciences
5
A - General Works
2
E - United States History
2
V - Naval Science
1