ee er 
Faraday as a Discoverer. Al 
“ Dear Sir—The otl you noticed yesterday turns out to be liquid 
chlorine. “ Yours faithfully, 
“M. Farapay.”* 
The gas had been liquefied by its own pressure. Faraday then 
tried compression with a syringe, and succeeded thus in lique- 
fying the gas. 
To the published account of this experiment Davy added 
the following note :—‘“‘In desiring Mr. Faraday to expose the 
hydrate of chlorine in a closed glass tube, it occurred to me 
that one of three things would happen : that it would become 
metals ; whence comes this odor, if it be not from the vapor 
of the metal ? 
* Paris: ‘Life of Davy,’ p. 391. 
