CLASSIFICATION
H - Social Science
170,218
P - Language and Literature
94,906
Q - Science
81,535
D - World History
48,159
T - Technology
44,019
L - Education
37,741
R - Medicine
36,407
B - Philosophy, Psychology, Religion
34,538
J - Political Science
23,565
G - Geography, Anthropology, Recreation
22,421
N - Fine Arts
22,036
K - Law
21,694
M - Music
12,806
F - General American History
11,390
Z - Library Science
10,325
S - Agriculture
9,419
E - United States History
6,981
C - Historical Sciences
6,351
U - Military Science
2,005
A - General Works
1,966
V - Naval Science
396