Classification
P - Language and Literature
253
R - Medicine
224
H - Social Science
174
M - Music
82
B - Philosophy, Psychology, Religion
48
Q - Science
44
F - General American History
36
G - Geography, Anthropology, Recreation
32
D - World History
31
T - Technology
28
S - Agriculture
26
A - General Works
23
C - Historical Sciences
11
L - Education
9
J - Political Science
6
K - Law
5
E - United States History
3
N - Fine Arts
2
U - Military Science
2