Classification
H - Social Science
230
T - Technology
212
P - Language and Literature
114
M - Music
92
R - Medicine
43
S - Agriculture
39
B - Philosophy, Psychology, Religion
35
A - General Works
33
D - World History
27
C - Historical Sciences
23
E - United States History
17
F - General American History
11
N - Fine Arts
5
K - Law
2
Q - Science
2
Z - Library Science
2