CLASSIFICATION
H - Social Science
170,059
P - Language and Literature
94,838
Q - Science
81,455
D - World History
48,092
T - Technology
43,925
L - Education
37,709
R - Medicine
36,396
B - Philosophy, Psychology, Religion
34,459
J - Political Science
23,526
G - Geography, Anthropology, Recreation
22,364
N - Fine Arts
21,996
K - Law
21,583
M - Music
12,805
F - General American History
11,386
Z - Library Science
10,312
S - Agriculture
9,410
E - United States History
6,977
C - Historical Sciences
6,316
U - Military Science
2,005
A - General Works
1,961
V - Naval Science
395