A Journal of Natural Philosophy, Chemistry and the Arts, Volumes 13-14

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Contents

On a Method of analyzing Stones containing fixed Alkali by Means
86
Scientific News 91 Anatomical Cabinet in Shower of Peas ib Univer
93
Fig
96
Letter from Mr Robert Harrup ſhewing that the Smut in Wheat exifts
113
Report made to the Athéné des Arts of Paris by MM Rondelet Beauval
128
Experiments niade at the Galvanic Society of Paris hy M Riffant
137
Analyſis of Birdlime By M Buillon Lagrange
144
Method of puritying Oil By M Curaudeau
150
Deſcription of a ſecret Lock of ten thousand Combinations W N
158
Letter from Mr Alex Crumbie concerning the Caledonian Literary
163
Obfervations and Enquiries concerning the Heat of Air Bellows
170
Experiments on the Torpedo By Meſſrs Humboldt and Gay Lufiac
180
Account of the Art and Inſtruments used for boring and blafting Rocks
192
Letter from an Enquirer on the Waſte of Fiſh aſſerted to be made on
200
On Pirite found in France by M Cocq Commiſſary of Gunpowder
212
Obſervations on the Compoſition of Water and other Elementary Doc
223
On the Conſtruction of the Sails of Ships and Veſſels By Malcolm Cowan
228
Muriatic Acid is compoſed of Oxigen and
237
Remarks relative to Dr Herichels Figure of Saturn By an Ohlerver
246
Examination of different Methods of ſeparating Nickel from Cobalt
261
Sugar prepared from Beets By M Hermeſtadt
267
Account of ſome Specimens of Baſaltes from the northern Coaſt
273
Letter from T Young M D F R S c claining the Lamp deſcribed
277
JI On the Tendency of Elaſtic Fluids to Diffuſion through each other
284
Extract of a Letter from M John Michael Hauſſmann to M Ber
365
SUPPLEMENT
373
Account of a Series of Experiments thewing the Effects of Compreſlion
381
Obſervations on the Effect of Madler Root on the Bones of Animals
406
On Fairy Rings and the Waſte of Fiſh in Scotland By A T
415
Explanation of Timekeepers conſtructed by Mr Thomas Earnſhaw
419
Experiinental Enquiry into the Proportion of the ſeveral Gaſes or Elaſtic
430
Obſervation which indicates a ſpontaneous Decompoſition of Nitrous Acid
438
Inquiries concerning the Mode of the Propagation of Heat in Liquids
i
MAY 1806
1
Account of a Series of Experiments shewing the Effects of Compression
13
Observations on Dispersion of the Light of Lamps by Means of Shades
22
Facts towards a History of Tin By Professor Proust 38
38
Experiments and Observations respecting the Manner in which the Gases
50
A Chemical Examination of the Bark of the White Willow and of
56
Explanation of Timekeepers constructed by the late Mr John Arnold
64
An Essay on the Cohesion of Fluids By Thomas Young M D
158
The three large folding Plates numbered Plate 1 Pl 2 and Pl 3
192
France 9th June 1806 Translated by W Cadell 353
353
HI An Account of the Invention of the Balance Spring and the Determination
363
A Method of rendering all the Vibrations of the Balance of a Timepiece
387
On Silver Coins By Thomas Thomson M D F R S E Communicated
396
On the Direction of the Radicle and Germen during the Vegetation
409
On Thunder Storms By Mr Samuel Berey 486
416

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Page 322 - Choosing a place where the water deepens gradually, walk coolly into it till it is up to your breast, then turn round, your face to the shore, and throw an egg into the water between you and the shore.
Page 322 - To encourage yourself in order to do this, reflect that your progress will be from deeper to shallower water, and that at any time you may, by bringing your legs under you, and standing on the bottom, raise your head far above the water.
Page 322 - ... that you cannot but by active force get down to the egg. Thus you feel the power of the water to support you, and learn to confide in that power; while your endeavours to overcome it, and...
Page 327 - If he moves his hands under the water in any way he pleases, his head will rise so high as to allow him free liberty to breathe ; and if he...
Page 411 - ... moisture to the plant, whilst young, is thus deprived of proper nutriment, and, ceasing almost wholly to grow, becomes of no importance to the tree. The tap root of the oak, about which so much has been written, will possibly be adduced as an exception; but having attentively examined at least 20,000 trees of this species, many of which had grown in some of the deepest and most favourable soils of England, and never having found a single tree possessing a tap root, I must be allowed to doubt...
Page 83 - In air and vapours this force appears to act uncontrolled ; but in liquids it is overcome by a cohesive force, while the particles still retain a power of moving freely in all directions It is simplest to suppose the force of cohesion nearly or perfectly constant in its magnitude, throughout the minute distance to which it extends, and owing its apparent diversity to the contrary action of the repulsive force which varies with the distance.
Page 337 - ... cliff, as well as the representation of a windmill near at hand. The reflected images were most distinct precisely opposite to where we stood, and the false cliff seemed to fade away, and to draw near to the real one, in proportion as it receded towards the west. This phenomenon lasted about ten minutes, till the sun had risen nearly his own diameter above the sea. The whole then seemed to be elevated into the air, and successively disappeared, like the drawing up of a drop scene in a theatre.
Page 336 - Walking on the cliff" about a mile to the east of Brighton, on the morning of the 18th of November 1804, while watching the rising of the sun, I turned my eyes directly...
Page 409 - ... thus occasions an increased longitudinal extension of the substance of the new wood on that side.* The depression of the lateral branch is thus prevented ; and it is even enabled to raise itself above its natural level, when the branches above it are removed ; and the young tree, by the same means, becomes more upright, in direct opposition to the immediate action of gravitation : nature, as usual, executing the most important operations by the most simple means. I could adduce many more facts...
Page 263 - ... a sieve. The feathers should be afterwards well washed in clean water, and dried upon nets, the meshes of which may be about the fineness of cabbage-nets. The feathers must be from time to time shaken upon the nets, and as they dry will fall through the meshes, and are to be collected for use.

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