Classification
M - Music
1,795
C - Historical Sciences
1,088
D - World History
595
H - Social Science
590
B - Philosophy, Psychology, Religion
494
T - Technology
467
E - United States History
448
R - Medicine
426
F - General American History
298
S - Agriculture
261
Q - Science
235
J - Political Science
230
A - General Works
136
Z - Library Science
128
K - Law
122
L - Education
96
G - Geography, Anthropology, Recreation
61
P - Language and Literature
59
N - Fine Arts
46
U - Military Science
3
V - Naval Science
2