Classification
H - Social Science
5,229
M - Music
4,199
K - Law
2,295
D - World History
1,670
S - Agriculture
1,462
E - United States History
1,343
Z - Library Science
1,114
C - Historical Sciences
979
J - Political Science
967
F - General American History
877
T - Technology
763
Q - Science
688
L - Education
542
R - Medicine
541
B - Philosophy, Psychology, Religion
365
A - General Works
344
P - Language and Literature
272
G - Geography, Anthropology, Recreation
208
N - Fine Arts
181
U - Military Science
126
V - Naval Science
25