[28] Other circumstances being equal.
[29] i. e. from the inside to the outside.
[30] See the preceding note, relating to top and bottom.
[31] i. e. From the inside to the outside.
[32] Placing the book on glass or wax is not necessary to produce the appearance; it is only to show that the visible electricity is not brought up from the common stock in the earth.
TO PETER COLLINSON, ESQ. F. R. S. LONDON.
[Farther Experiments confirming the preceding Observations.—Leyden Bottle analysed.—Electrical Battery.—Magical Picture.—Electrical Wheel or Jack.—Electrical Feast.]
Philadelphia, 1748.
Sir,