Directory of the Washington Academy of Sciences and affiliated societies : comprising the Anthropological, Biological, Chemical, Entomological, Geographic, Geological, Historical, Medical, and Philosophical Societies Q Science
Memoirs and proceedings of the Manchester literary & philosophical society. (Manchester memoirs.) Q Science
Théorie mathématique de la lumière II. Nouvelles études sur la diffraction.–Théorie de la dispersion de Helmholtz. Leçons professées pendant le premier semestre 1891-1892 Q Science
