Classification
P - Language and Literature
68,651
M - Music
4,460
F - General American History
3,623
K - Law
1,904
B - Philosophy, Psychology, Religion
1,515
H - Social Science
1,267
Q - Science
1,110
D - World History
984
R - Medicine
910
S - Agriculture
467
A - General Works
457
C - Historical Sciences
426
N - Fine Arts
335
J - Political Science
293
T - Technology
262
L - Education
253
E - United States History
201
G - Geography, Anthropology, Recreation
124
Z - Library Science
67
U - Military Science
49
V - Naval Science
10