Classification
P - Language and Literature
631
H - Social Science
547
D - World History
226
M - Music
153
Q - Science
122
B - Philosophy, Psychology, Religion
111
J - Political Science
100
L - Education
100
N - Fine Arts
77
G - Geography, Anthropology, Recreation
60
S - Agriculture
54
R - Medicine
40
K - Law
38
T - Technology
34
C - Historical Sciences
30
A - General Works
27
F - General American History
27
Z - Library Science
23
U - Military Science
17
V - Naval Science
5
E - United States History
2