Classification
R - Medicine
118
D - World History
54
B - Philosophy, Psychology, Religion
44
A - General Works
9
G - Geography, Anthropology, Recreation
9
Q - Science
8
H - Social Science
7
E - United States History
5
F - General American History
2
S - Agriculture
2
C - Historical Sciences
1
N - Fine Arts
1
P - Language and Literature
1
T - Technology
1
U - Military Science
1