CLASSIFICATION
Q - Science
3,101
T - Technology
228
H - Social Science
220
L - Education
107
R - Medicine
38
B - Philosophy, Psychology, Religion
28
G - Geography, Anthropology, Recreation
21
S - Agriculture
13
J - Political Science
9
N - Fine Arts
9
C - Historical Sciences
7
M - Music
5
D - World History
4
P - Language and Literature
4
Z - Library Science
4
F - General American History
1