Classification
P - Language and Literature
622
R - Medicine
209
Q - Science
156
T - Technology
14
S - Agriculture
9
D - World History
8
G - Geography, Anthropology, Recreation
6
H - Social Science
4
B - Philosophy, Psychology, Religion
1
E - United States History
1
K - Law
1
N - Fine Arts
1
V - Naval Science
1
Z - Library Science
1