Classification
H - Social Science
3,882
M - Music
1,991
S - Agriculture
1,136
J - Political Science
541
T - Technology
510
Q - Science
497
K - Law
444
L - Education
410
D - World History
375
R - Medicine
287
Z - Library Science
260
F - General American History
236
P - Language and Literature
147
N - Fine Arts
119
G - Geography, Anthropology, Recreation
101
U - Military Science
87
E - United States History
77
A - General Works
72
B - Philosophy, Psychology, Religion
70
C - Historical Sciences
44
V - Naval Science
10