melted and stuck together, and partly blown up or reduced
to smoke, and dissipated. [See an account of the same effect of
lightning on a wire at Newbury, p. 311.] The steeple, when repaired,
was guarded by an iron conductor, or rod, extending from the foot of
the vane-spindle down the outside of the building, into the earth.
The newspapers have mentioned, that in 1765, the lightning fell a
third time on the same steeple, and was safely conducted by the rod;
but the particulars are not come to hand.
_Proposal of an Experiment to measure the Time taken up by an
Electric Spark, in moving through any given Space. By J. A.
Esq. of New-York._
Read at the Royal Society, Dec 26, 1756.
If I remember right, the Royal Society made one experiment to
discover the velocity of the electric fire, by a wire of about four
miles in length, supported by silk, and by turning it forwards and
backwards in a field, so that the beginning and end of the wire were
at only the distance of two people, the one holding the Leyden bottle
and the beginning of the wire, and the other holding the end of the
wire and touching the ring of the bottle; but by this experiment no
discovery was made, except that the velocity was extremely quick.
As water is a conductor as well as metals, it is to be considered
whether the velocity of the electric fire might not be discovered by
means of water; whether a river, or lake, or sea, may not be made
part of the circuit through which the electric fire passes? instead
of the circuit all of wire, as in the above experiment.
Whether in a river, lake, or sea, the electric fire will not
dissipate and not return to the bottle? or, will it proceed in strait
lines through the water the shortest courses possible back to the
If the last, then suppose one brook that falls into Delaware doth
head very near to a brook that falls into Schuylkil, and let a wire
be stretched and supported as before, from the head of the one brook
to the head of the other, and let the one end communicate with the
water, and let one person stand in the other brook, holding the
Leyden bottle, and let another person hold that end of the wire not
in the water, and touch the ring of the bottle.--If the electric fire
will go as in the last question, then will it go down the one
Observations concerning the increase of mankind, peopling of countries, &c 383 .Page 22
I imagine spouts, in cold seasons, as Gordon's in the Downs, prove the descent.Page 24
Water-spouts have, also, a progressive motion; this is sometimes greater, and sometimes less; in some violent, in others barely perceivable.Page 29
B B, the bush described by Stuart, surrounding the foot of the column of water.Page 46
remember it.Page 59
| | 60 |N E |S 76 E| 125 |45 .Page 161
| 66 |NW bW|SW Â½W | 190 | | | | 5 |43 5 |17 25| 67| 65 | 65| 68.Page 170
And if I had now boys to educate, I should prefer those schools (other things being equal) where an opportunity was afforded for acquiring so advantageous an art, which once learned is never forgotten.Page 173
With this view I rise almost every morning, and sit in my chamber without any clothes whatever, half an hour or an hour, according to the season, either reading or writing.Page 183
Great and bright fires do also very much contribute to damage the eyes, dry and shrivel the skin, and bring on early the appearances of old age.Page 224
And he remarks, respecting those proportions, that they are similar to the harmonic divisions of a monochord.Page 230
_Miscellaneous Observations.Page 242
You will find it very little.Page 250
One of our good citizens, Mr.Page 263
Now the construction of the old Scotch tunes is this, that almost every succeeding emphatical note is a third, a fifth, an octave, or in short some note that is in concord with the preceding note.Page 282
The _y_, where used simply, is supplied by _i_, and where as a dipthong, by two vowels: that letter is therefore omitted as useless.Page 288
He that spells truly most of the other's words is victor for that day; he that is victor most days in a month, to obtain a prize, a pretty neat book of some kind, useful in their future studies.Page 375
conjectures as to its effects on the globe, 120.