Professor Faraday did not ... bodies by heat ; which was illustrated by experiments with tourmelin, the substance in which this property was first observed.
Proceedings of the Royal Irish Academy (1836-1869) Vol. 2, 1840 - 1844 On Mr. Faraday's Experiments on the Manu... On Mr. Faraday's Experiments on the Manufacture of Glass for Optical Purposes This is ...