Über dieses Buch
Meine Mediathek
Bücher bei Google Play
TO PETER FRANKLIN. 7 May, 1760.
On the Saltness of Sea Water
218
TO ALEXANDER SMALL. 12 May, 1760.
On the Northeast Storms in North America
219
TO MISS MARY STEVENSON. 11 June, 1760.
On the Effect of Air on the Barometer, and the
On the Bristol. Waters, and the Tide in Rivers
TO MISS MARY STEVENSON.
30 March, 1761.
Tides in Rivers
225
231
10 August, 1761.
Salt Water rendered fresh by Distillation.- Meth-
od of relieving Thirst by Sea Water
To MISS MARY STEVENSON. 20 September, 1761.
Tendency of Rivers to the Sea. Effect of the
Sun's Rays on Cloths of different Colors
TO DAVID HUME. 24 January, 1762.
On the Method of securing Houses from the Ef-
fects of Lightning
232
234
239
241
DAVID HUME TO B. FRANKLIN. 10 May, 1762.
Remarks on the Mode of constructing Lightning-
Rods. Compliment to Dr. Franklin as a Philo-
sopher and a Man of Letters
243
To JOHN BAPTIST BECCARIA. 13 July, 1762.
Relating a curious Instance of the Effect of Oil
on Water
253
Congelation of Quicksilver.-Cold produced by Evapora-
tion. 26 February, 1763 .
255
John CANTON TO B. FRANKLIN. 29 June, 1764.
The Melting of Metals by Lightning not a cold Fu
sion. Compressibility of Water and other Fluids
-
EZRA STILES TO B. FRANKLIN. 20 February, 1765.
Thermometrical Experiments
To LORD KAMES. 2 June, 1765.
On the Harmony and Melody of the old Scotch
Tunes
256
260
263
TO PETER FRANKLIN.
On the Defects of Modern Music
269
JOSEPH PRIESTLEY TO B. FRANKLIN. 21 September, 1766.
Relating to a History of Electricity. Curious
Experiments with an Electrified Chain
273
A Scheme of a New Alphabet and Reformed Mode of
TO JOHN WINTHROP. 11 March, 1769.
Telescope and Books for Harvard College
To M. DUBOURG. 30 August, 1769.
Introducing Dr. Lettsom
JOHN EWING TO B. FRANKLIN. 4 January, 1770.
Transmitting Observations of the Transits of Venus
and Mercury. Proposal for an Observatory in
Philadelphia
To NEVIL MASKELYNE. 12 February, 1770.
Containing an Account of Professor Winthrop's Ob-
servation of the Transit of Mercury over the Sun,
November 9th, 1769
To MICHAEL HILLEGAS. 17 March, 1770.
326
328
On the different Quantities of Rain which fell at
different Heights over the same Ground
W. SMALL TO B. FRANKLIN. 10 August, 1771.
Opinions of the Ancient Physicians respecting Ca-
tarrhs or Colds
336
339
To M. LE ROY. 20 April, 1772.
Intended French Voyage to the North Pole. — Mr.
West, President of the Royal Society.. Messrs.
Banks and Solander
341
To JOSEPH PRIESTLEY. 4 May, 1772.
Electrical Experiments.—Imperfection of the Abbé
Nollet's Electrical Machine.-One on an improv-
ed Construction sent to M. Le Roy
JOSEPH PRIESTLEY TO B. FRANKLIN.
342
3 June, 1772.
344
JOSEPH PRIESTLEY TO B. FRANKLIN. 1 July, 1772.
Curious Experiments on Air, and Discoveries of
various Properties
346
JOHN WALSH TO B. FRANKLIN. 12 July, 1772.
Experiments for ascertaining the Electrical Proper-
ties of the Torpedo
J. B. TODERINI TO B. FRANKLIN. 15 August, 1772.
Giving an Account of a Work published by him,
entitled "Filosofia Frankliniana "
Answer to M. Dubourg's Queries respecting the Armonica.
8 December, 1772
Some Directions for drawing out the Tones from the Glass-
es of the Armonica
On the Stilling of Waves by Means of Oil
348
351
352
353
355
T HUMPHRY MARSHALL. 14 February, 1773.
On the Spots in the Sun; Dr. Wilson's New Hy-
pothesis
M. DE SAUSSURE TO B. FRANKLIN. 23 February, 1773.
Conductors of Lightning.
Project of the Royal
Society to ascertain the Attraction of Mountains.-
368
Volcanic Eruptions. — Experiments on the Torpedo 371
JOHN WINTHROP TO B. FRANKLIN. 4 March, 1773.
Dr. Priestley. - Effects of Lightning
To M. DUBOURG. 10 March, 1773.
On the Causes of Colds
To M. LE ROY. 30 March, 1773.
375
378
Mr. Wilson's Opposition to Pointed Conductors. —
M. Le Roy chosen a Member of the American
Philosophical Society.
A new-invented Carriage Wheel. - Explosion of
Melted Iron and Glass Drops in Water. - Stove
for consuming the Smoke.
To M. DUBOURG. 29 June, 1773.
Inquiries on the Causes of Taking Cold
Preparatory Notes and Hints for writing a Paper concern-
ing what is called Catching Celd
To SAMUEL COOPER. 7 July, 1773.
Stoves for Public Buildings
. 387
387
397
JOSEPH PRIESTLEY TO B. FRANKLIN. 26 Sept. 1773.
New Experiments on Air
404
TO JOHN INGENHOUSZ. 30 September, 1773.
Torpedo. - Magnetic Needle. - Nairne's Electri-
cal Machine. Magazines at Purfleet
Experiments on Alkaline Air
ERASMUS DARWIN TO B. FRANKLIN.
14 Oct. 1773.
406
409
410
24 Jan. 1774.
Communicating a Philosophical Paper
TO THE MARQUIS DE CONDORCET. 20 March, 1774.
Answers to Questions on Philosophical Subjects
TO JOHN BAPTIST BECCARIA. 20 March, 1774.
English Translation of Beccaria's Book. Ex-
periment to show that Electricity does not pass
through a perfect Vacuum
To JOSEPH PRIESTLEY.
Effect of Vegetation on Noxious Air
TO JOSEPH PRIESTLEY. 10 April, 1774.
On the Inflammability of the Surface of certain
Rivers in America
On the Aurora Borealis
JOSEPH PRIESTLEY TO B. FRANKLIN. 27 Sept. 1779.
Vegetation of Plants in Water
PIETRO TURINI TO B. FRANKLIN. 18 Sept. 1780.
Communicating Intelligence of a new Work on