 | Philip Ray Coursey - 1927 - 706 pages
...University of Leyden, in January, 1746. The former, writing to Dr. Leberkuhn, says — As soon as this vial and nail are removed from the electrifying glass, or the prime conductor to which it hath been exposed is taken away, it throws out a pencil of flame so long that with this burning machine... | |
 | Endless amusement - 1820 - 232 pages
...drops of spirit of wine, be put into it, the experiment succeeds the better. As soon as this phi<il and nail are removed from the electrifying glass,...it has been exposed, is taken away, it throws out a stream of flame to long, that with this burning machine in your hand, yon may take about sixty steps... | |
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I commonly rub it over beforehand with a finger, on which I put some pounded chalk. If a little mercury, or a few drops of spirit of wine, be put into it, the experiment succeeds the better. As soon as this phial and nail are removed from the electrifying... 
