Page:Philosophical Transactions - Volume 037.djvu/47

 Ball of Cork stuck on the little End of it, under which the Leaf-Brass, being laid; and the Tube rubbed and held near his Feet, the Ball attracted the Leaf-Brass to the Hight of two Inches, and repelled it, and attracted for several Times together with great Vigour.

April 21, I again repeated the Experiment on the Boy; and now he attracted much stronger than at the first: The Leaf-Brass rose to his Face at the Hight of more than twelve Inches. Then I gave the Boy to hold in each Hand the Tops, of two Fishing-Rods, with a Ball of Cork on each of their lesser Ends; then a small Stand being set under each Ball, with the Leaf-Brass on it, the Tube being rubbed, and held near his Feet, both the Corks attracted and repelled together strongly. The Length of the Poles were each of them about seven Feet. Then the Boy was laid on his left Side, and a Fishing-Rod, of near twelve Feet in Length, given him to hold with both his Hands; there was a small Ball of Cork at the Ends of the Rod, that was an Inch and three quarters Diameter: Then all Things being prepared, the Tube held hear the Boy's Feet, the Cork Ball attracted and repelled the Leaf-Brass with Force to the Hight of at least two Inches.

Note, That when I speak of holding the Tube near the Boy's Feet, I mean over against the Soles of his Feet; and when near his Head, is to be understood the Crown of his Head; for when the Tube is held above, or over his Legs, the Attraction is not so strongly communicated to the other Parts of his Body.