CLASSIFICATION
Q - Science
7,270
L - Education
2,053
H - Social Science
537
T - Technology
535
G - Geography, Anthropology, Recreation
334
P - Language and Literature
299
S - Agriculture
298
B - Philosophy, Psychology, Religion
225
R - Medicine
182
C - Historical Sciences
69
D - World History
69
Z - Library Science
53
A - General Works
35
N - Fine Arts
27
K - Law
25
J - Political Science
15
F - General American History
10
V - Naval Science
10
E - United States History
7
M - Music
6
U - Military Science
3