Expériences et observations sur l'électricité faites à Philadelphie en Amérique

By Benjamin Franklin

Page 57

bouteilles
seront déchargées.

»Sur l'assertion de Mr. Franklin que, si l'on approche l'un de l'autre
les crochets des deux bouteilles également chargées, il n'en résultera
ni étincelle, ni choc: _Ho! voilà_, s'écrie M. L. N.[20], _ce dont je ne
conviendrai pas; car dès la premiere fois que j'en fis l'épreuve, je vis
très-distinctement éclater le feu électrique entre les deux crochets, &
je ressentis un coup assez vif dans les deux bras_. Cela peut être, & je
crois que cela est, pour l'avoir éprouvé de même; mais la proposition de
M. Franklin n'en est pas moins vraie, & il faudra que le physicien
François en convienne malgré sa protestation, car il faut se rendre à
l'évidence; il doit sçavoir qu'après l'expérience de Leyde, la bouteille
n'est plus chargée, & qu'il n'y reste plus de feu: si les deux
bouteilles dont il s'agit restent chargées après en avoir approché les
deux crochets l'un de l'autre, c'est une preuve incontestable qu'elles
n'ont pas produit tout leur effet. Celui que M. L. N. a ressenti n'est
venu que de ce que l'une des bouteilles étoit plus chargée que l'autre,
& le feu qu'il a vû si distinctement entre les deux crochets, n'est que
ce qui en a passé de l'une à l'autre pour les remettre toutes deux en
équilibre: elles n'en restent pas moins chargées l'une & l'autre après
cette légère commotion, qui d'ailleurs n'est pas différente de celles
qu'on ressent dans la main à chaque étincelle que l'on tire d'un peu
loin du conducteur, quand on charge une bouteille.

[Note 20: Lett. sur l'Électricité, pag. 123.]

»Pour avoir sur ce sujet une conviction encore plus complette, il ne
s'agit que de varier l'expérience: prenez deux bouteilles dont l'une
soit bien chargée & l'autre ne le soit point du tout; en approchant
leurs crochets l'un de l'autre, vous verrez une étincelle & vous
recevrez un coup; mais après cela les bouteilles seront toutes deux à
demi chargées; preuve certaine que le feu est sorti par le crochet de
celle qui étoit électrisée, comme il y étoit entré.

»Cette erreur de M. L. N. ne vient donc que de ce qu'il n'a pas fait
attention que pour cette expérience les deux bouteilles doivent être
_également_ chargées. Quand elles le sont, il n'y a réellement ni
étincelle, ni choc, comme l'a judicieusement avancé M. Franklin.

40. Variez l'expérience en chargeant deux fioles également, l'une par le
_crochet_, l'autre par le _côté_; tenez par les _côtés_ celle qui a été
chargée par le _crochet_, & tenez par le _crochet_ celle qui à été
chargée par le _côté_; appliquez le _crochet_ de la première au

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Text Comparison with The Complete Works in Philosophy, Politics and Morals of the late Dr. Benjamin Franklin, Vol. 3 [of 3]

Page 17
_ Philadelphia was named as being the nearer the centre of the colonies, where the commissioners would be well and cheaply accommodated.
Page 30
First, they will say, and perhaps with justice, that the body of the people in the colonies are as loyal, and as firmly attached to the present constitution, and reigning family, as any subjects in the king's dominions.
Page 37
5.
Page 142
Would you have had your representatives give up those points? Do _you_ intend to give them up, when at the next election _you_ are made assemblymen? If so, tell it us honestly beforehand, that we may know what we are to expect when we are about to choose you? I come now to the last clause of your petition, where, with the same wonderful sagacity with which you in another case discovered the excellency of a speech you never heard, you undertake to _characterise a petition_ [_from the_ assembly] _you own you never saw_; and venture to assure his majesty, that it is "exceeding grievous in its nature, that it by no means contains a proper representation of the state of this province, and is repugnant to the general sense of his numerous and loyal subjects in it.
Page 163
) appointing a new board of customs, and sending over a set of commissioners, with large salaries, to be established at Boston, who were to have the care of collecting those duties, which were by the act expressly mentioned to be intended for the payment of the salaries of governors, judges, and other officers of the crown in America; it being a pretty general opinion here, that those officers ought not to depend on the people there, for any part of their support.
Page 166
In the same manner have a few nail-makers, and still a smaller body of steel-makers (perhaps there are not half a dozen of these in England) prevailed totally to forbid by an act of parliament the erecting of slitting-mills, or steel furnaces in America; that the Americans may be obliged to take all their nails for their buildings, and steel for their tools, from these artificers, under the same disadvantages.
Page 176
_ Yes, I have heard that it has been greatly obstructed by some new regulations, and by the English men of war and cutters stationed all along.
Page 194
_ Is this all you mean; a letter from the secretary of state? _A.
Page 198
1766 will not then suit 1779.
Page 220
I have reprinted it from a copy which I found in the Gentleman's Magazine.
Page 231
But to return to Dr.
Page 268
&c.
Page 275
Tolerably good workmen in any of those mechanic arts are sure to find employ, and to be well paid for their work, there being no restraints preventing strangers from exercising any art they understand, nor any permission necessary.
Page 294
However, I must confess, I cannot help pitying my correspondent's case, and in her behalf, exhort the visitor to remember and consider the words of the wise man, withdraw thy foot from the house of thy neighbour, lest he grow weary of thee and so hate thee.
Page 320
Hours of each night in which we burn candles 7 ------- Multiplication gives for the total number of hours 1,281 These 1,281 hours multiplied by 100,000, the number of inhabitants give 128,100,000 One hundred twenty-eight millions and one hundred thousand hours, spent at Paris by candle-light, which, at half a pound of wax and tallow per hour, gives the weight of 64,050,000 Sixty-four millions and fifty thousand of pounds, which, estimating the whole at the medium price of thirty sols the pound, makes the sum of ninety-six millions and seventy-five thousand livres tournois 96,075,000 An immense sum! that the city of Paris might save every year, by the economy of using sunshine instead of candles.
Page 345
_ _June 2, 1725.
Page 360
Should we conjure them by all the ties of neighbourhood, friendship, justice, and humanity, to consider these things; and what distraction, misery, and confusion, what desolation and distress, may possibly be the effect of their _unseasonable_ predominancy and perseverance; yet all would be in vain: for they have already been, by great numbers of the people, petitioned in vain.
Page 361
Thus unfortunately are we circumstanced at this time, my dear countrymen and fellow-citizens; we, I mean, the middling people; the farmers, shopkeepers, and tradesmen of this city and country.
Page 362
It seems as if our greatest men, our _cives nobilissimi_[201] of both parties, had sworn the ruin of the country, and invited the French, our most inveterate enemy to destroy it.
Page 400
176.