Classification
H - Social Science
3,828
P - Language and Literature
2,018
T - Technology
1,395
R - Medicine
1,228
M - Music
760
B - Philosophy, Psychology, Religion
706
S - Agriculture
455
A - General Works
391
C - Historical Sciences
293
F - General American History
258
D - World History
246
K - Law
180
Z - Library Science
173
E - United States History
114
Q - Science
93
N - Fine Arts
45
L - Education
29
V - Naval Science
25
G - Geography, Anthropology, Recreation
20
J - Political Science
17
U - Military Science
10