An essay to shew the cause of electricity; and why some things are non-electricable : in which is also consider'd its influence in the blasts on human bodies, in the blights on trees, in the damps in mines, and as it may affect the sensitive plant, &c / In a letter to Mr. William Watson. By John Freke.

  • John Freke
Date:
1746
Catalogue details

Licence: Public Domain Mark

Credit: An essay to shew the cause of electricity; and why some things are non-electricable : in which is also consider'd its influence in the blasts on human bodies, in the blights on trees, in the damps in mines, and as it may affect the sensitive plant, &c / In a letter to Mr. William Watson. By John Freke. Source: Wellcome Collection.

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    [ 3+ ] Things to be electrify’d, then they arc more eafily lick’d into the whole Power, and fo become eleftric. The Reafon therefore, why the Gold, and other light Materials, (which I have fuppofed to have fome of this Fire in them) are attracted, is, the Invitation they re¬ ceive from the curling Effluvia to a clofer Contact: And when it has re¬ ceived as much as the former can give it, its Invitation ceafes, till it has parted with what it had to its Neigh¬ bour ; and then it is again invited as before. I come now to confider the Vio¬ lence of this Fire; which, palling thro’ the Pores of the glafsTube, may, as the Sound of Organ-Pipes, which proceeds only from their differently •modifying the Air, caufe the various hilling Noifes you hear when the Tube 5 is