CLASSIFICATION
H - Social Science
170,215
P - Language and Literature
94,900
Q - Science
81,531
D - World History
48,158
T - Technology
44,018
L - Education
37,741
R - Medicine
36,406
B - Philosophy, Psychology, Religion
34,535
J - Political Science
23,564
G - Geography, Anthropology, Recreation
22,417
N - Fine Arts
22,035
K - Law
21,693
M - Music
12,806
F - General American History
11,389
Z - Library Science
10,324
S - Agriculture
9,419
E - United States History
6,980
C - Historical Sciences
6,351
U - Military Science
2,005
A - General Works
1,966
V - Naval Science
396