traction ſhould be perform'd. To which I ſhall adde, that poſſibly the Celerity of the motion of the Flame upwards, may render it very difficult for the Electrical Emanations to divert the Flame from its Courſe.
10. We have found by Experiment, That a vigorous and well excited piece of Amber will draw, not onely the powder of Amber, but leſs minute fragments of it. And as in many caſes one contrary directs to another, ſo this Trial ſuggeſted a further, which, in caſe of good ſucceſs, would probably argue, that in Electrical Attraction not onely Effluvia are emitted by the Electrical body, but theſe Effluvia faſten upon the body to be drawn, and that in ſuch a way, that the intervening viſcous ſtrings, which may be ſuppoſed to be made up of thoſe cohering Effluvia, are, when their agitation ceaſes, contracted or made to ſhrink inwards towards both ends, almoſt as a highly ſtretch'd Lute-ſtring does when 'tis permitted to retreat into
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