TY - JOUR T1 - The Refraction Equivalents of Carbon, Hydrogen, Oxygen, and Nitrogen in Organic Compounds JF - Proceedings of the Royal Society of London (1854-1905) VL - 31 SP - 327 EP - 330 PY - 1880/01/01/ UR - http://dx.doi.org/10.1098/rspl.1880.0043 M3 - doi:10.1098/rspl.1880.0043 AU - Gladstone, J. ER -