Classification
R - Medicine
107
Q - Science
80
H - Social Science
59
T - Technology
58
A - General Works
39
S - Agriculture
39
M - Music
33
D - World History
31
P - Language and Literature
25
N - Fine Arts
20
K - Law
12
Z - Library Science
10
B - Philosophy, Psychology, Religion
9
C - Historical Sciences
5
L - Education
5
F - General American History
4
J - Political Science
4
U - Military Science
4
E - United States History
3
G - Geography, Anthropology, Recreation
3
V - Naval Science
1