CLASSIFICATION
H - Social Science
168,656
P - Language and Literature
95,284
L - Education
74,739
Q - Science
74,495
D - World History
53,757
T - Technology
47,431
R - Medicine
33,161
B - Philosophy, Psychology, Religion
32,456
N - Fine Arts
23,959
J - Political Science
23,322
G - Geography, Anthropology, Recreation
22,355
K - Law
21,477
M - Music
17,399
C - Historical Sciences
14,677
Z - Library Science
9,873
S - Agriculture
9,456
F - General American History
8,541
E - United States History
7,632
A - General Works
7,583
V - Naval Science
2,717
U - Military Science
1,983