Researches on curves of the second order also on cones and spherical conics treated analytically, in which the tangencies of Apollonius are investigated, and general geometrical constructions deduced from analysis also several of the geometrical conclusio This book, "Researches on curves of the second order also on cones and spherical conics treated analytically, in which the tangencies of Apollonius are investigated, and general geometrical constructions deduced from analysis also several of the geometrical conclusio", by George Whitehead Hearn, is a replication of a book originally published before 1846. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.