TY  - JOUR
T1  - On Some Hitherto Undescribed Optical Properties of Doubly Refracting Crystals.--Preliminary Notice
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 26
SP  - 384
EP  - 386
PY  - 1877/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1877.0059
M3  - doi:10.1098/rspl.1877.0059
AU  - Sorby, H.
ER  -