...Gj. In the 64th volume of Crelle's Journal, Professor Schrbter noticed that the three-cnsped qnartic of Steiner was also the envelope of the connector...and hence he was led to interesting generalisations. Professor Cremona, in the current (64th) volume of the same Journal, has demonstrated, geometrically,...

...lines joining «", u", «f", respectively to the opposite points of contact, intersect on the curve G3. circle, the other on the line at infinity ; and hence he was led to interesting generalisations. Professor Cremona, in the current (64th) volume of the same Journal, has demonstrated, geometrically,...

...G3. In the 54th volume of Crelle's Journal, Professor Schröter noticed that the three-cusped qnartic of Steiner was also the envelope of the connector of corresponding points of two anharmonically corresponding systems, one on a circle, the other on the line at infinity ; and hence...

...quartic of Steiner was also the envelope of the connector of corresponding points of two anharmouically corresponding systems, one on a circle, the other...to interesting generalisations." In the Lady's and Gentleman'* Diary for I860, p. 11, the prize question proposed for solution by " Petrarch " is : If...