Classification
R - Medicine
238
Q - Science
169
D - World History
112
P - Language and Literature
66
B - Philosophy, Psychology, Religion
61
E - United States History
19
C - Historical Sciences
16
A - General Works
11
G - Geography, Anthropology, Recreation
10
T - Technology
4
F - General American History
2
H - Social Science
1
M - Music
1
Z - Library Science
1