Classification
P - Language and Literature
1,954
Q - Science
119
B - Philosophy, Psychology, Religion
71
D - World History
47
H - Social Science
46
K - Law
25
R - Medicine
19
J - Political Science
18
L - Education
15
G - Geography, Anthropology, Recreation
13
N - Fine Arts
9
S - Agriculture
5
T - Technology
5
F - General American History
4
A - General Works
3
E - United States History
3
C - Historical Sciences
2
U - Military Science
2
V - Naval Science
2
M - Music
1
Z - Library Science
1