Classification
M - Music
499
H - Social Science
419
R - Medicine
416
D - World History
349
T - Technology
199
S - Agriculture
192
A - General Works
177
P - Language and Literature
135
Q - Science
114
B - Philosophy, Psychology, Religion
102
K - Law
102
L - Education
102
J - Political Science
96
F - General American History
65
N - Fine Arts
42
Z - Library Science
34
G - Geography, Anthropology, Recreation
27
E - United States History
11
U - Military Science
6
C - Historical Sciences
4
V - Naval Science
4