Classification
R - Medicine
278
M - Music
195
P - Language and Literature
41
F - General American History
22
Q - Science
11
Z - Library Science
8
A - General Works
7
B - Philosophy, Psychology, Religion
6
D - World History
5
S - Agriculture
3
T - Technology
3
C - Historical Sciences
1
G - Geography, Anthropology, Recreation
1
H - Social Science
1
N - Fine Arts
1