Classification
Q - Science
176
R - Medicine
136
D - World History
70
B - Philosophy, Psychology, Religion
55
P - Language and Literature
32
A - General Works
28
C - Historical Sciences
24
M - Music
19
T - Technology
8
F - General American History
7
E - United States History
4
Z - Library Science
3
G - Geography, Anthropology, Recreation
2
H - Social Science
2
N - Fine Arts
1