Classification
M - Music
784
H - Social Science
783
S - Agriculture
230
L - Education
129
T - Technology
67
Q - Science
50
J - Political Science
44
D - World History
34
G - Geography, Anthropology, Recreation
31
K - Law
30
F - General American History
25
B - Philosophy, Psychology, Religion
21
P - Language and Literature
18
Z - Library Science
18
R - Medicine
8
N - Fine Arts
7
A - General Works
4
U - Military Science
4
V - Naval Science
2