Signum
P - Language and Literature
118
E - United States History
83
H - Social Science
60
N - Fine Arts
30
B - Philosophy, Psychology, Religion
28
F - General American History
13
D - World History
9
R - Medicine
9
J - Political Science
7
L - Education
6
Q - Science
6
T - Technology
6
G - Geography, Anthropology, Recreation
5
M - Music
5
Z - Library Science
4
K - Law
3
U - Military Science
3
A - General Works
2
S - Agriculture
2
C - Historical Sciences
1
V - Naval Science
1