And as his research continued in Syracuse, Archimedes made sure word of what he was doing got back to friends in Alexandria. Among his correspondents was a former Croton pupil named Dositheusa to whom Archimedes would send one major treatise after another that would revolutionize mathematics. There was Quadrature of the Parabola, then two books on Sphere and Cylinder, one on Spiral Lines, and finally a treatise on Conoids and Spheroids.
