Classification
P - Language and Literature
1,391
C - Historical Sciences
234
Q - Science
172
B - Philosophy, Psychology, Religion
108
T - Technology
88
R - Medicine
76
H - Social Science
48
A - General Works
40
D - World History
40
F - General American History
35
M - Music
14
S - Agriculture
11
K - Law
10
G - Geography, Anthropology, Recreation
3
J - Political Science
3
Z - Library Science
3
E - United States History
2
L - Education
2
V - Naval Science
2
N - Fine Arts
1