The Complete Works in Philosophy, Politics and Morals of the late Dr. Benjamin Franklin, Vol. 2 [of 3]

By Benjamin Franklin

Page 236

_Feet._ _In._

Front of the bottom box, 2 0
Height of its partitions, 0 4¼
Length of No. 1, 2, 3 and 4, each, 1 3
Length of No. 5 and 6, each, 0 8¼
Breadth of the passage between No. 2 and 3, 0 6
Breadth of the other passages each, 0 3½
Breadth of the grate, 0 6½
Length of ditto, 0 8
Bottom moulding of box C, square, 1 0
Height of the sides of ditto, 0 4
Length of the back side, 0 10
Length of the right and left sides, each,

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Text Comparison with Experiments and Observations on Electricity Made at Philadelphia in America

Page 3
1.
Page 5
a man standing on wax may be electrised a number of times, by repeatedly touching the wire of an electrised bottle (held in the hand of one standing on the floor) he receiving the fire from the wire each time: yet holding it in his own hand, and touching the wire, tho' he draws a strong spark, and is violently shock'd, no Electricity remains in him; the fire only passing thro' him from the upper to the lower part of the bottle.
Page 6
FRANKLIN.
Page 7
--If you present the point in the dark, you will see, sometimes at a foot distance, and more, a light gather upon it like that of a fire-fly or glow-worm; the less sharp the point, the nearer you must bring it to observe the light; and at whatever distance you see the light, you may draw off the electrical fire, and destroy the repellency.
Page 9
After such strong spark, neither of them discover any electricity.
Page 10
--We electrify, upon wax in the dark, a book that has a double line of gold round upon the covers, and then apply a knuckle to the gilding;.
Page 11
_ sufficiently.
Page 12
If the phials were both charged through their hooks, the cork, when it has been attracted and repell'd by the one, will not be attracted, but equally repelled by the other.
Page 17
A small upright shaft of wood passes at right angles through a thin round board, of about twelve inches diameter, and turns on a sharp point of iron fixed in the lower end, while a strong wire in the upper-end passing thro' a small hole in a thin brass plate, keeps the shaft truly vertical.
Page 18
It turns horizontally on a point at the lower end of its Axis, which rests on a bit of brass cemented within a glass salt-celler.
Page 19
--If one of these thin bottles be electrified by the coating, and the spark taken out thro' the gilding, it will break the glass inwards at the same time that it breaks the gilding outwards.
Page 20
Perhaps if that due quantity of electrical fire so obstinately retained by glass, could be separated from it, it would no longer be glass; it might lose its transparency, or its brittleness, or its elasticity.
Page 21
1.
Page 25
In the collision they shake off and drop their water, which represents rain.
Page 34
These explanations of the power and operation of points, when they first occurr'd to me, and while they first floated in my mind, appeared perfectly satisfactory; but now I have wrote them, and consider'd them more closely in black and white, I must own I have some doubts about them: yet as I have at present nothing better to offer in their stead, I do not cross them out: for even a bad solution read, and its faults discover'd, has often given rise to a good one in the mind of an ingenious reader.
Page 37
From the middle of the stand, let an iron rod rise and pass bending out of the door, and then upright 20 or 30 feet, pointed very sharp at the end.
Page 39
25.
Page 45
The surface that has been thus emptied by having its electrical fluid driven out, resumes again an equal quantity with violence, as soon as the glass has an opportunity to discharge that over-quantity more than it could retain by attraction in its other surface, by the additional repellency of which the vacuum had been occasioned.
Page 48
I have try'd another way, which I thought more likely to obtain a mixture of the electrical and other effluvia together, if such a mixture had been possible.
Page 50
If the phial really exploded at both ends, and discharged fire from both coating and wire, the balls would be _more_ electrified and recede _farther_: for none of the fire can escape, the wax handle preventing.