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Number:
3906
Author:
J. Booth
Issue:
ET Vol 25, Nov 1872
Tags:
Non-Conic Curves & Locus/Envelopes
Solved by:
M. Collins, MQ Vol 18
Solved by:
A.M. Nash, MQ Vol 18
Solved by:
J. Wolstenholme, MQ Vol 18