Memoirs of Benjamin Franklin; Written by Himself. [Vol. 2 of 2] With his Most Interesting Essays, Letters, and Miscellaneous Writings; Familiar, Moral, Political, Economical, and Philosophical, Selected with Care from All His Published Productions, and Comprising Whatever Is Most Entertaining and Valuable to the General Reader

By Benjamin Franklin

Page 211

towards it from all
sides without, and by its centrifugal force from within, moving round
with prodigious swiftness (having, as it were, the entire momenta
of all the currents ----> ----> united in itself), and with
a power equal to its swiftness and density.

It is this whirling body of air between _a a a a_ and _b b b b_ that
rises spirally; by its force it tears buildings to pieces, twists up
great trees by the roots, &c., and, by its spiral motion, raises the
fragments so high, till the pressure of the surrounding and approaching
currents diminishing, can no longer confine them to the circle, or their
own centrifugal force increasing, grows too strong for such pressure,
when they fly off in tangent lines, as stones out of a sling, and fall
on all sides and at great distances.

If it happens at sea, the water under and between _a a a a_ and _b b b
b_ will be violently agitated and driven about, and parts of it raised
with the spiral current, and thrown about so as to form a bushlike
appearance.

This circle is of various diameters, sometimes very large. If the vacuum
passes over water, the water may rise in it in a body or column to near
the height of thirty-two feet. If it passes over houses, it may burst
their windows or walls outward, pluck off the roofs, and pluck up the
floors, by the sudden rarefaction of the air contained within such
buildings; the outward pressure of the atmosphere being suddenly taken
off; so the stopped bottle of air bursts under the exhausted receiver of
the airpump.

Fig. 2 is to represent the elevation of a water-spout, wherein I suppose
P P P to be the cone, at first a vacuum, till W W, the rising column of
water, has filled so much of it. S S S S, the spiral whirl of air,
surrounding the vacuum, and continued higher in a close column after the
vacuum ends in the point P, till it reaches the cool region of the air.
B B, the bush described by Stuart, surrounding the foot of the column of
water.

Now I suppose this whirl of air will at first be as invisible as the
air itself, though reaching, in reality, from the water to the region of
cool air, in which our low summer thunder-clouds commonly float: but
presently it will become visible at its extremities. _At its lower end_,
by the agitation of the water under the whirling part of the circle,
between P and S, forming Stuart's bush,

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Text Comparison with Benjamin Franklin Representative selections, with introduction, bibliograpy, and notes

Page 15
412 The Lord's Prayer (1779?), 414 The Levee (1779?), 417 Proposed New Version of the Bible (1779?), 419 To Joseph Priestley (February 8, 1780), 420 To George Washington (March 5, 1780), 421 To Miss Georgiana Shipley (October 8, 1780), 422 To Richard Price (October 9, 1780), 423 Dialogue between Franklin and the Gout (1780), 424 The Handsome and Deformed Leg (1780?), 430 To Miss Georgiana Shipley (undated), 432 To David Hartley (December 15, 1781), .
Page 43
G.
Page 123
[i-449] See _Writings_, II, 95-6 (1728).
Page 134
Chinard, Gilbert.
Page 161
That Felicity, when I reflected on it, has induc'd me sometimes to say, that were it offer'd to my Choice, I should have no Objection to a Repetition of the same Life from its Beginning, only asking the Advantages Authors have in a second Edition to correct some Faults of the first.
Page 201
I watch'd the Pay table on Saturday Night, and collected what I stood engag'd for them, having to pay some times near Thirty Shillings a Week on their Accounts.
Page 261
_Having chose the Person, take all his Virtues, Excellencies, &c.
Page 265
Yet is there one Person, an Inhabitant of this Town of _Boston_, whom we honour as a Doctor in the Chair, or a perpetual Dictator.
Page 306
The Good of Man cannot consist in the mere Pleasures of Sense; because, when any one of those Objects which you love is absent, or can't be come at, you are certainly miserable: and if the Faculty be impair'd, though the Object be present, you can't enjoy it.
Page 341
-- ADVICE TO A YOUNG TRADESMAN [1748] TO MY FRIEND, A.
Page 386
their Holds return in Haste, To Man give up the World, his native Reign, Who then resumes his Pow'r, and rules the Plain.
Page 465
3 h.
Page 529
As it is a common opinion that a shot, fired through a water-spout, will break it, I tried to break this little whirlwind, by striking my whip frequently through it, but without any effect.
Page 572
These were not Enemies; they were born among us, and yet we have killed them all.
Page 577
To avoid _actual_ discord, it was therefore necessary that the succeeding emphatic note should be a chord with the preceding, as their sounds.
Page 592
Way, now I mention Cards, let me tell you that Quadrille is quite out of Fashion here, and English Whisk all the Mode at Paris and the Court.
Page 618
II, c.
Page 629
Suppose, at nine o'clock, at eleven, and at one in the evening; and by preaching no more sermons than usual of a moderate length; and thereby accommodate a greater number of people with convenient hours.
Page 726
A Question may be asked; Could all these People, now employed in raising, making, or carrying Superfluities, be subsisted by raising Necessaries? I think they might.
Page 791
"Newswriters" (1) "nonsense" (5) and "nonsence" (1) *"obtain" (28) and "obteyn" (1) (in Mather quote) "Offence" (14) and "Offense" (2) "Optics" (1) and "Opticks" (1) "partial" (7) and "partiall" (1) "Penny-worth" (1) and "Pennyworth(s)" (1) "Pennsylvania" (159) and "Pensilvania" (15) and "Pensylvania" (1) "persuaded" (16) and "perswaded" (2) "Physic" (1) and "Physick" (2) "Polly" (9) and "Polley" (1) (---- Stevenson) "Portrait" (9) and "Pourtrait" (1) "possest" (1) and "possessed" (10) "printing-house" (2), "Printing-house" (2), "Printing-House" (7) and "Printinghouse" (2) "Priviledge" (1) and "Privilege" (3) "Public" (22) and "Publick" (43) *"Puffendorf" (3) and "Puffendorff" (1) "rejoicing" (5) and "rejoycing" (1) "rendered" (7) and "rendred" (1) "rendering" (3) and "rendring" (1) "Rhetoric" (6) and "Rhetorick" (1) "rhime" (3) and "rhyme" (3) "Rhode Island" (4) and "Rhodeisland" (3) "Ribands" (1) and "Ribbands" (4) "Rochefoucauld" (2), "Rochefoucault" (1) and "Larochefoucault" (1) "role" (5) and role (2) "rouse" (1) and "rouze" (1) "satirize" (1) and "satyrize" (1) "Scolar" (7) and "Scollar" (1) "seacoasts" (1) and "sea-coasts" (1) "Silinc" (1) and "Silence" (4) (---- Dogood) "smoke" (3) and "smoak" (2) "soured" (1) and "sowred" (1) "staied" (2) and "stayed" (2) "straight" (4) and "strait" (8) "subtle" (1) and "subtile" (1) "sunset" (1) and "sun-set" (1) "surprise" (11) and "surprize" (16) "Surveyor-General" (1) and "Surveyor General" (2) "Susquehannah" (1), "Susquehanah" (1) and "Sasquehannah" (1) "threatened" (5) and "threatned" (1) "tiger" (1) and "tyger" (1) "to-day" (6) (in text) and "today" (5) "topic" (2) and "topick" (1) "Une loge" (1) and "Un loge" (1) "virtuous" (19) and "vertuous" (1) "Watergruel" (1) and "Water-gruel" (1) "wellmeaning (1) and "well-meaning" (1) "wondered" (4) and "wondred" (1) "Wool" (3) and "Wooll" (4) (* found within directly quoted material) 10.