Classification
T - Technology
296
P - Language and Literature
269
H - Social Science
182
M - Music
115
R - Medicine
113
S - Agriculture
105
B - Philosophy, Psychology, Religion
86
C - Historical Sciences
86
A - General Works
81
Q - Science
58
D - World History
30
K - Law
28
F - General American History
25
L - Education
14
E - United States History
9
G - Geography, Anthropology, Recreation
7
J - Political Science
2
N - Fine Arts
2
Z - Library Science
2