Page:Experimentsnotes00boyl.pdf/585

Rh dies eem'd to depend upon very mall circumtances. And though forbearing at preent, to offer you my thoughts about the caue of thee urprifing Ph&aelig;nomena, I propoe it onely as a Probleme to your elf and your curious Friends, yet the main circumtances eeming to be of a Mechanical Nature, the recital of my Trials will not be impertinent to the Deign and Subject of this paper.

Took then a large and vigorous piece of Amber conveniently haped for my purpoe, and a downy feather, uch as grows upon the Bodies, not Wings or Tails of a omewhat large Chicken: Then having moderately excited the Electrick, I held the Amber o near it, that the neighbouring part of the feather was drawn by it and tuck fat to it; but the remoter parts continued in their former poture. This done, I applyed my fore-finger to thee erected downy