TY  - JOUR
T1  - On the Variation of the Electric Conductivity of Glass with Temperature, Density, and Chemical Composition. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 33
SP  - 256
EP  - 257
PY  - 1881/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1881.0101
M3  - doi:10.1098/rspl.1881.0101
AU  - Gray, T.
ER  -