Number:
1990
Author:
Issue:
ET Vol 19, Jul 1866
Tags:
Non-Conic Curves & Locus/Envelopes
Solved by:
W.S. Burnside, MQ Vol 6
Solved by:
A. Cayley, MQ Vol 6
Solved by:
M.W. Crofton, MQ Vol 6
Solved by:
T.A. Hirst, MQ Vol 6