Experiments and Observations on Electricity Made at Philadelphia in America

By Benjamin Franklin

Page 4

thread instantly attracted by the bottle. (This is best
done by a vinegar cruet, or some such belly'd bottle). As soon as you draw
any fire out from the upper part by touching the wire, the lower part of
the bottle draws an equal quantity in by the thread.


FIG. 2. Fix a wire in the lead, with which the bottom of the bottle is
armed, (_d_) so as that bending upwards, its ring-end may be level with the
top or ring-end of the wire in the cork (_e_), and at three or four inches
distance. Then electricise the bottle, and place it on wax. If a cork
suspended by a silk thread (_f_) hang between these two wires, it will play
incessantly from one to the other, 'till the bottle is no longer
electrised; that is, it fetches and carries fire from the top to the bottom
of the bottle, 'till the equilibrium is restored.


FIG. 3. Place an electricised phial on wax; take a wire (_g_) in form of a
C, the ends at such a distance when bent, as that the upper may touch the
wire of the bottle, when the lower touches the bottom: stick the outer part
on a stick of sealing wax (_h_) which will serve as a handle. Then apply
the lower end to the bottom of the bottle, and gradually bring the
upper-end near the wire in the cork. The consequence is, spark follows
spark till the equilibrium is restored. Touch the top first, and on
approaching the bottom with the other end, you have a constant stream of
fire, from the wire entering the bottle. Touch the top and bottom together,
and the equilibrium will soon be restored, but silently and imperceptibly;
the crooked wire forming the communication.


FIG. 4. Let a ring of thin lead or paper surround a bottle (_i_), even at
some distance from or above the bottom. From that ring let a wire proceed
up, 'till it touch the wire of the cork (_k_). A bottle so fixt cannot by
any means be electrised: the equilibrium is never destroyed: for while the
communication between the upper and lower parts of the bottle is continued
by the outside wire, the fire only circulates: what is driven out at
bottom, is constantly supply'd from the top. Hence a bottle cannot be
electrised that is foul or moist on the outside.


Place a man on a cake of wax, and present him the wire of the electrified
phial to touch, you standing on the floor, and holding it

Last Page Next Page

Text Comparison with Autobiography of Benjamin Franklin

Page 4
Page 10
Copies of the manuscript were sent to friends of Franklin in England and France, among others to Monsieur Le Veillard at Paris.
Page 21
Page 27
And by such a manner, you can seldom hope to recommend yourself in _pleasing_ your hearers, or to persuade those whose concurrence you desire.
Page 42
This was the second governor who had done me the honour to take notice of me; which, to a poor boy like me, was very pleasing.
Page 66
We had scarce opened our letters and put our press in order, before George House, an acquaintance of mine, brought a countryman to us, whom he had met in the street inquiring for a printer.
Page 77
And now I set on foot my first project of a public nature, that for a subscription library.
Page 81
of silver! They had been bought for me without my knowledge by my wife, and had cost her the enormous sum of three-and-twenty shillings, for which she had no other excuse or apology to make, but that she thought _her_ husband deserv'd a silver spoon and China bowl as well as any of his neighbors.
Page 87
_ What good { } business, and take the shall I do this day? { } resolution of the day; { 7} prosecute the present { } study, and breakfast.
Page 96
The piece, being universally approved, was copied in all the newspapers of the Continent; reprinted in.
Page 106
Page 107
Our club, the Junto, was found so useful, and afforded such satisfaction to the members, that several were desirous of introducing their friends, which could not well be done without exceeding what we had settled as a convenient number, viz.
Page 110
[Illustration: "the flames have often been extinguished"] In 1739 arrived among us from Ireland the Reverend Mr.
Page 116
My education in New England, where a fast is proclaimed every year, was here of some advantage: I drew.
Page 129
, etc.
Page 145
The flyers, not being pursu'd, arriv'd at Dunbar's camp, and the panick they brought with them instantly seiz'd him and all his people; and, tho' he had now above one thousand men, and the enemy who had beaten Braddock did not at most exceed four hundred Indians and French together, instead of proceeding, and endeavouring to recover some of the lost honour, he ordered all the stores, ammunition, etc.
Page 149
The Moravians procur'd me five waggons for our tools, stores, baggage, etc.
Page 150
[Illustration: "We had not march'd many miles before it began to rain"] The next day being fair, we continu'd our march, and arriv'd at the desolated Gnadenhut.
Page 151
With these coals they had made small fires in the bottom of the holes, and we observ'd among the weeds and grass the prints of their bodies, made by their laying all round, with their legs hanging down in the holes to keep their feet warm, which, with them, is an essential point.
Page 156
I say much practice, for my house was continually full, for some time, with people who came to see these new wonders.