Classification
Q - Science
430
R - Medicine
189
P - Language and Literature
175
F - General American History
152
B - Philosophy, Psychology, Religion
91
S - Agriculture
79
D - World History
47
C - Historical Sciences
42
A - General Works
30
M - Music
7
E - United States History
4
H - Social Science
3
T - Technology
3
Z - Library Science
3
G - Geography, Anthropology, Recreation
2
K - Law
2
L - Education
1