Classification
P - Language and Literature
7,005
T - Technology
109
Q - Science
100
F - General American History
48
H - Social Science
47
M - Music
26
A - General Works
17
B - Philosophy, Psychology, Religion
15
C - Historical Sciences
14
N - Fine Arts
14
E - United States History
13
D - World History
12
G - Geography, Anthropology, Recreation
8
R - Medicine
8
S - Agriculture
8
K - Law
7
J - Political Science
5
L - Education
2
U - Military Science
2
Z - Library Science
2