The SciencesThe Evolution of the Elements: The Evidence of the StarsThat the Various Chemical Elements Merge Into One Another by a Process of EvolutionBy John W. N. Sullivan on May 1, 1915AdvertisementABOUT THE AUTHOR(S)Recent Articles by John W. N. SullivanSir William CrookesX-Ray Photographs of FlowersX-Ray Analysis of Crystals, A Close Shave in the Air, and more