A treatise on the Cycloid and all forms of Cycloidal Curves and on the use of such curves in dealing with the motions of planets, comets, &c. and of matter projected from the sun

This paperback, "A treatise on the Cycloid and all forms of Cycloidal Curves and on the use of such curves in dealing with the motions of planets, comets, &c. and of matter projected from the sun" from Richard A Proctor, was published 2nd January 2020 by Alpha Edition.