Classification
N - Fine Arts
67
H - Social Science
51
S - Agriculture
50
F - General American History
49
R - Medicine
21
T - Technology
20
K - Law
17
A - General Works
14
Z - Library Science
11
L - Education
10
P - Language and Literature
10
J - Political Science
7
G - Geography, Anthropology, Recreation
6
Q - Science
6
M - Music
4
D - World History
3
B - Philosophy, Psychology, Religion
2
C - Historical Sciences
1