Classification
D - World History
1,254
F - General American History
1,045
H - Social Science
373
B - Philosophy, Psychology, Religion
283
L - Education
229
P - Language and Literature
197
U - Military Science
145
Z - Library Science
115
R - Medicine
81
J - Political Science
67
S - Agriculture
50
T - Technology
41
G - Geography, Anthropology, Recreation
31
K - Law
29
M - Music
22
V - Naval Science
21
Q - Science
20
N - Fine Arts
15
C - Historical Sciences
12
A - General Works
10