CLASSIFICATION
N - Fine Arts
4 000
T - Technology
397
L - Education
365
S - Agriculture
320
Q - Science
188
H - Social Science
122
Z - Library Science
110
D - World History
73
V - Naval Science
44
G - Geography, Anthropology, Recreation
42
A - General Works
31
C - Historical Sciences
29
B - Philosophy, Psychology, Religion
27
M - Music
22
E - United States History
18
F - General American History
16
R - Medicine
16
K - Law
13
P - Language and Literature
12
U - Military Science
3