T. PELHAM DALE. — On a relation existing between the density and refraction of gaseous elements and also of some of their compounds (Relations qui existent entre la densité et la réfraction des éléments gazeux simples ou composés) ; Phil. Mag., 5e série, t. XXVIII, p. 268
J. Phys. Theor. Appl., 9 1 (1890) 342-343
DOI: 10.1051/jphystap:018900090034202