TY  - JOUR
T1  - Additional Refractive Indices of Quartz, Vitreous Silica, Calcite, and Fluorite
JF  - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934)
VL  - 84
IS  - 569
SP  - 193
EP  - 193
PY  - 1910/07/28/
UR  - http://dx.doi.org/10.1098/rspa.1910.0070
M3  - doi:10.1098/rspa.1910.0070
AU  - Gifford, J.
ER  -