Classification
H - Social Science
5,724
M - Music
3,866
S - Agriculture
1,693
K - Law
1,218
J - Political Science
940
Q - Science
876
T - Technology
853
L - Education
667
D - World History
607
R - Medicine
490
Z - Library Science
388
F - General American History
352
P - Language and Literature
199
G - Geography, Anthropology, Recreation
190
A - General Works
184
N - Fine Arts
147
E - United States History
126
U - Military Science
115
B - Philosophy, Psychology, Religion
86
C - Historical Sciences
72
V - Naval Science
18