Subtil Medium Prov'd

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. The Ancients, fo long ago as the Days of Pys tbagomr, according to fome, and very probably long before, were not unacquainted with that Pro perty in Amber, of attracting light Bodies when lying in the Sunlhine, but ...