Classification
H - Social Science
3,656
M - Music
1,125
R - Medicine
837
D - World History
559
P - Language and Literature
555
B - Philosophy, Psychology, Religion
470
F - General American History
301
A - General Works
279
S - Agriculture
226
E - United States History
175
C - Historical Sciences
121
J - Political Science
85
T - Technology
46
K - Law
43
Z - Library Science
41
G - Geography, Anthropology, Recreation
24
L - Education
15
N - Fine Arts
9
Q - Science
7
U - Military Science
5
V - Naval Science
1