Number:
5571
Author:
Issue:
ET Vol 31, Mar 1878
Tags:
Non-Conic Curves & Locus/Envelopes
Solved by:
J. Hammond, MQ Vol 29
Solved by:
Christine Ladd, MQ Vol 29
Solved by:
J. O’Regan, MQ Vol 29
Solved by:
Jacobini Vincenzo, MQ Vol 29