Original sentence: He wrote another famous paper in 1864 under the title of A Dynamical Theory of the Electromagnetic Field which did not use the concept of a sea of molecular vortices.In this paper Maxwell derived a wave equation from a set of eight equations which appeared in the paper
Edited sentence: He wrote another famous paper in 1864 under the title of A Dynamical Theory of the Electromagnetic Field in which the details of the luminiferous medium were less explicit.In this paper Maxwell did not use molecular vortices in order to connect electromagnetism to the speed of light.Instead, he used a dynamical approach in which he derived a wave equation from a set of eight equations which appeared in the paper