Classification
H - Social Science
334
S - Agriculture
316
M - Music
175
D - World History
97
P - Language and Literature
85
Q - Science
64
G - Geography, Anthropology, Recreation
39
L - Education
31
B - Philosophy, Psychology, Religion
30
T - Technology
25
Z - Library Science
24
F - General American History
19
C - Historical Sciences
16
A - General Works
15
J - Political Science
15
N - Fine Arts
15
K - Law
13
R - Medicine
9
E - United States History
7
U - Military Science
7