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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    [ 2 5 ] penfion on (ilk Cords, which are non¬ electric, you may perceive the Fire iffue from a Piece of iron Wire com¬ ing from the glafs Ball, in a lambent Flame, which draws to a Point, and then diverges, and drives itfelf on, till the Gun-barrel, or Bar, is electrify’d. Its being a Gumbarrel can be no other Reafon for its Preference in that Shape than in another; but I believe the Occafion of its being ufed here is, becaule the greateft Effect which has been fhewn from Electricity, was fent from abroad ; and that was caufed by fufpending a great Gun in a non¬ electric filk Cord. The Gun feems to have been made ufe of here as being the greateft Quantity of Iron, and in the beft Shape, they could get it for Sufnenfion. And O were a Perfon fo fufpended, if E he