Journal of Natural Philosophy, Chemistry and the Arts, Bind 2

Forsideomslag
G. G. and J. Robinson, 1799
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Copy of a Letter from Profeffor Wilfon of Glaſgow on the Art of mul
60
Inftructions concerning the Manufacture of Steel and its Ufes By Van
64
Obfervations chemical and economical on various Subjects
71
The Method of making ſtrong artificial Magnets By M Coulomb
80
The greateſt difficulty of printing from glafs plates arifes from their fragility It may be obviated
89
Obfervations and Experiments on the Formation of Sulphate of Soda
91
A Report made to the Council of Trade and Mines in Spain on a
93
JUNE 1798
97
An Enquiry concerning the Source of Heat which is excited by Friction
106
An Attempt to difcover the Genuineness and Purity of Drugs and
118
A Model propofed for the Conftruction of a Satellitian or Inftrument
122
Objections to the Opinion of Profeffor Spallanzani refpecting the Cauſe
132
W the year 1170
138
Experiments and Obfervations on the Effect of annealing a Plate
140
JULY 1798
145
Farther Experiments and Obfervations on the Affections and Properties
147
Enquirie refpecting the Colouring Matter of Vegetables and the Action
155
An Account of certain Motions which ſmall lighted Wicks acquire
167
On the Knowledge of the Ancients refpecting Gravity By a Corre
184
Hiftorical facts and obfervations which prove the rapid growth and advantages to be derived from
190
Light By Henry Brougham jun
193
Obfervations on Bituminous Subftances with a Defcription of the Varie
201
New Methods of affording at an inconfiderable Expence the Heat
209
An Account of fome Experiments made by Mr John Cuthbertſon with
215
On the Propagation of the Zebra with the Aſs p
267
Experimental Reſearches concerning the Principle of the lateral Com
273
f Curious Circumftances upon which the Vitreous or the Stony Characters
284
Production of bitumens New fpecies found in Derbyshire which is elaftic Enumeration
288
On the Analyſis of Pumice which is found to contain Potaſh and
289
Obfervations on the Natural Hiſtory of Guiana In a Letter from Wils
297
On the Sugar Maple By Citizen Teffier P
304
The Dutch Proceſs for making the Blue diftinguiſhed by the Name
311
An Effay on the Art of conveying Secret and Swift Intelligence
319
Scientific News and Accounts of Books P
328
Abſtract of a Memoir of M Prouft on the Tanning Principle By Citi
337
Obfervations on the Natural Hiſtory of Guiana In a Letter from William
347
On the fuppofed Revival of Infects after long Immerſion in Wine or other
353
Obſervation of the Paffage of a Comet over the Difc of the Sun By Citi
357
Defcription of a newinvented detached Eſcapement for Pocket Watches
363
Defcription of an Apparatus for faturating Potash and Soda with Carbonic
371
DECEMBER 1798
381
Analyſis of the Red Lead of Siberia with Experiments on the
387
Information refpecting the Earth of the Beryl in Continuation of
393
An Enquiry concerning the Chemical Properties that have been attributed
400
Experiments and Obfervations on the Nature of Sugar and of Vegetable
406
On the Art of covering Wire Cloth with a tranfparent Varniſh as a Sub
412
An Account of Electrical Machines of confiderable Power in which
420
MARCH 1799
525

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Side 351 - Armenians, have a singular method of ornamenting watch cases, &c., with diamonds and other precious stones, by simply glueing or cementing them on. The stone is set in silver or gold, and the lower part of the metal made flat, or to correspond with the part to which it is to be fixed; it is then warmed gently, and...
Side 110 - ... made watertight by means of collars of oiled leather, the box was filled with cold water (viz. at the temperature of 60'), and the machine was put in motion. The result of this beautiful experiment was very striking, and the pleasure it afforded me amply repaid me for all the trouble I had had in contriving and arranging the complicated machinery used in making it.
Side 111 - BOILED ! It would be difficult to describe the surprise and astonishment expressed in the countenances of the bystanders, on seeing so large a quantity of cold water heated, and actually made to boil, without any fire.
Side 328 - The winds roared, and the rains fell. The poor white man, faint and weary, came and sat under our tree. He has no mother to bring him milk — no wife to grind his corn.
Side 105 - Being engaged lately in superintending the boring of cannon in the workshops of the military arsenal at Munich, I was struck with the very considerable degree of Heat which a brass gun acquires in a short time in being bored, and with the still more intense Heat (much greater than that of boiling water, as I found by experiment) of the metallic chips separated from it by the borer.
Side 13 - Far on the right, her dogs foul Scylla hides: Charybdis roaring on the left presides, And in her greedy whirlpool sucks the tides; Then spouts them from below: with fury driv'n, The waves mount up and wash the face of heav'n.
Side 110 - ... of the other end of it, it is evident that the machinery could be put in motion, without the least danger of forcing the box out of its place, throwing the water out of it, or deranging any part of the apparatus.
Side 112 - ... further how large a quantity of heat might be produced by proper mechanical contrivance, merely by the strength of a horse, without either fire, light, combustion, or chemical decomposition; and, in a case of necessity, the heat thus produced might be used in cooking victuals.
Side 413 - At first they could not be persuaded of the reality of the appearance ; but they soon became so thoroughly convinced, by the cliffs gradually appearing more elevated, and approaching nearer, as it were, that they pointed out, and named to me, the different places they had been accustomed to visit ; such as the Bay, the Old Head or Man, the Windmill, &c. at Boulogne ; St. Vallery, and other places on the coast of Picardy ; which they afterwards confirmed, when they viewed them through their telescopes.
Side 136 - Paulus ./Egineta fpeaks of fugar, as growing, in his time, in Europe, and alfo as brought from Arabia Felix ; the latter of which he feems to think lefs fweet than the fugar produced in Europe, and neither injurious to the Ûomach nor caufing thirft, as the European fugar was apt to do.

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