Classification
M - Music
6,379
P - Language and Literature
1,055
A - General Works
653
C - Historical Sciences
482
B - Philosophy, Psychology, Religion
461
D - World History
426
R - Medicine
347
F - General American History
327
Q - Science
184
H - Social Science
168
T - Technology
124
N - Fine Arts
101
S - Agriculture
79
K - Law
47
Z - Library Science
44
E - United States History
39
J - Political Science
30
G - Geography, Anthropology, Recreation
28
L - Education
15
U - Military Science
10
V - Naval Science
4