Classification
K - Law
1,609
P - Language and Literature
1,235
H - Social Science
389
M - Music
160
R - Medicine
131
F - General American History
119
C - Historical Sciences
83
B - Philosophy, Psychology, Religion
81
L - Education
76
S - Agriculture
70
E - United States History
57
J - Political Science
53
A - General Works
50
D - World History
49
Z - Library Science
35
T - Technology
31
U - Military Science
10
G - Geography, Anthropology, Recreation
3
Q - Science
1