Classification
T - Technology
85
R - Medicine
57
Z - Library Science
46
B - Philosophy, Psychology, Religion
27
S - Agriculture
27
P - Language and Literature
15
D - World History
14
M - Music
13
H - Social Science
12
A - General Works
10
C - Historical Sciences
9
Q - Science
9
F - General American History
7
E - United States History
4
U - Military Science
2
G - Geography, Anthropology, Recreation
1
V - Naval Science
1