CLASSIFICATION
N - Fine Arts
512
T - Technology
409
L - Education
228
Q - Science
103
S - Agriculture
98
H - Social Science
70
Z - Library Science
55
R - Medicine
29
G - Geography, Anthropology, Recreation
22
M - Music
9
D - World History
7
V - Naval Science
6
B - Philosophy, Psychology, Religion
4
A - General Works
3
C - Historical Sciences
3
P - Language and Literature
3
E - United States History
1
F - General American History
1