CLASSIFICATION
H - Social Science
171,814
P - Language and Literature
117,582
Q - Science
81,878
L - Education
78,326
D - World History
57,898
T - Technology
48,956
R - Medicine
36,575
B - Philosophy, Psychology, Religion
35,562
N - Fine Arts
24,759
J - Political Science
24,137
G - Geography, Anthropology, Recreation
23,643
K - Law
22,703
M - Music
20,079
C - Historical Sciences
17,384
F - General American History
12,335
S - Agriculture
11,389
Z - Library Science
10,368
A - General Works
8,500
E - United States History
7,858
V - Naval Science
3,514
U - Military Science
2,091