Mathematical Questions and Solutions, from the "Educational Times."

A. M. NESBITT aa'a ALLAN CUNNINGHAM angle B.A. Cantab B.Sc b₂ bb'b bisected C. M. Ross Cambridge cardioide cc'c chord co-ordinates Coll College conic cos² cos³ curve d/dx diagonal diameter directrix Dublin ellipse equal equation ex-circles F. G. W. BROWN Fermat's principle fixed point Gergonne point given Hence homographic inscribed intersection isogonal conjugates J. J. BARNIVILLE line at infinity line joining LL.D locus meet mid-points nine-point circle orthocentre parabola parallel perpendicular plane pole Prof Professor K. J. SANJÁNA Professor R. W. GENESE prove quadrilateral radical axis ratio respect S. F. KIRBY sin² Solution by T. R. Symmedian point T. R. LEE t₁ tan² tangent theorem triangle ABC Univ values vertex W. F. BEARD W. N. BAILEY Σα