TY  - JOUR
T1  - On the Refraction-Equivalents of the Elements
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 160
SP  - 9
EP  - 32
PY  - 1870/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1870.0002
M3  - doi:10.1098/rstl.1870.0002
AU  - Gladstone, J.
ER  -