TY  - JOUR
T1  - Refractive Indices of Glass
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 26
SP  - 290
EP  - 297
PY  - 1877/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1877.0043
M3  - doi:10.1098/rspl.1877.0043
AU  - Hopkinson, J.
ER  -