CLASSIFICATION
Q - Science
683
H - Social Science
362
T - Technology
59
A - General Works
43
M - Music
29
B - Philosophy, Psychology, Religion
27
S - Agriculture
13
C - Historical Sciences
11
G - Geography, Anthropology, Recreation
10
L - Education
7
J - Political Science
6
R - Medicine
6
K - Law
2
D - World History
1
F - General American History
1
P - Language and Literature
1
V - Naval Science
1