Classification
P - Language and Literature
544
Q - Science
23
D - World History
19
B - Philosophy, Psychology, Religion
17
H - Social Science
17
R - Medicine
15
K - Law
12
J - Political Science
6
N - Fine Arts
5
T - Technology
5
G - Geography, Anthropology, Recreation
4
M - Music
3
S - Agriculture
2
C - Historical Sciences
1
E - United States History
1
U - Military Science
1