Page:Experimentsnotes00boyl.pdf/583

Rh to flye mot to her Cheeks when they had been put into a omewhat tiff Curle, and when the Weather was froty*.


 * Some years after the making the Experiments about the Production of Eletricity, having a deire to try, whether in the Attractions made by Amber, the motions excited by the air had a coniderable Interet, or whether the Effect were not due rather to the Emiion and Retraction of Effluvia, which being of a vicous nature may conit of Particles either branch'd or hookt, or otherwie fit for ome kind of Coheion, and capable of being tretch'd, and of hrinking again, as Leather Thongs are: To examine this, I ay, I thought the fittet way, if 'twere practicable, would be, to try, whether Amber would draw a light Body in a Glas whence the air was pumpt out. And though the Trial of this eem'd very difficult to make, and we were omewhat dicouraged by our first attempt, wherein the weight of the ambient air broke our Receiver, which chanced to prove too weak, when the internal air had been with extraordinary diligence pumpt out; yet having a vigorous piece of Amber, which I had caus'd to be purpoely turn'd and polih'd for