Classification
R - Medicine
89
T - Technology
41
B - Philosophy, Psychology, Religion
32
Z - Library Science
30
H - Social Science
21
E - United States History
20
D - World History
15
P - Language and Literature
14
A - General Works
8
Q - Science
8
K - Law
5
C - Historical Sciences
3
G - Geography, Anthropology, Recreation
2
M - Music
2
F - General American History
1
S - Agriculture
1
V - Naval Science
1