Repertory of Arts, Manufactures, and Agriculture: Consisting of Original Communications, Specifications of Patent Inventions ...T. and G. Underwood, 1818 |
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admit aforesaid alkali ammonia appear applied ascertained azote blast furnace Bradley's branches Brewster carbonic acid centre chloric acid chlorine cock cold colour Committee common compounds connecting rods contain cranks crude or pig-iron crystals cylinder described drawing earth effect engine experiment Fiorin fixed furnace grains heat hydrogen improvement inches instrument invention iron kaleidoscope lace lever lime liquid liquor Lussac machine manner MANUFACTURES manure means ment metal method mixed mixture motion muriatic acid nature nitric acid observed oxyd oxygen paper pass pears phial pipe placed plants platina potash present principle produced proportion puddled iron purpose quantity reflectors render resin rollers roots salt salt duties shew shewn ship side slags or cinders Society soil solution sorts steam stone substance sulphuric sulphuric acid surface temperature thereof tion trees trusses tube vapour vegetable ventilation vessel weight wheel wood XXXIII.-SECOND SERIES
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Seite 257 - Now Know Ye, that in compliance with the said proviso, I, the said Adolphe Nicole, do hereby declare that the nature of my said Invention, and the manner in which the same is to be performed, are particularly described and ascertained in and by the following statement thereof, reference being had to the Drawing hereunto annexed, and to the figures and letters marked thereon...
Seite 123 - The substitution of analogy for fact is the bane of chemical philosophy ; the legitimate use of analogy is to connect facts together, and to guide to new experiments.
Seite 199 - STONE": in which said Letters Patent there is contained a proviso obliging me, the said Joseph Aspdin, by an instrument in writing under my hand and seal, particularly to describe and ascertain the nature of my said invention, and in what manner the same is to be performed...
Seite 120 - It is impossible to infer what will be the qualities of a compound from the qualities of its constituents ; and if M. Gay Lussac's views were correct, the prussic basis of azote and carbon ought to have its acid properties diminished, and not increased, as he has proved them to be, by combination with hydrogen. When certain properties are found belonging to a compound, we have no right to attribute these properties to any of its elements to the exclusion of the rest, but they must be regarded as...
Seite 309 - ... air or water. What may be our ultimate view of the laws of chemistry, or how far our ideas of elementary principles may be simplified, it is impossible to say. We can only reason from facts. We cannot imitate the powers of composition belonging to vegetable structures ; but at least we can understand them : and as far as our researches have gone, it appears, that in vegetation compound forms are uniformly produced from simpler ones ; and the elements in the soil, the atmosphere, and the earth...
Seite 155 - s instrument, in any of the particulars mentioned above, the introduction of coloured and moveable objects, at the end of the reflectors, is quite peculiar to Dr Brewster's instrument. Besides this, a circumstance highly deserving of attention, is the use of two lenses and a draw tube, so that the action of the kaleidoscope is extended to objects of all sizes, and at all distances from the observer, and united, by that means, to the advantages of the telescope. JP...
Seite 314 - ... plants except in a state of solution, there is every reason to suppose that other substances less essential will be in the same case. I found by some experiments made in 1804, that plants introduced into strong fresh solutions of sugar, ' mucilage, tanning principle, jelly, and other substances died ; but that plants lived in the same solutions after they had fermented. At that time, I supposed that fermentation was necessary to prepare the food of plants ; but I have since found that the deleterious...
Seite 122 - I shewed long ago, the only difference between nitre and hyper-oxymuriate of potash is, that one contains a proportion of azote, and the other a proportion of chlorine.
Seite 145 - Medal, the reflectors were in some cases inclined to each other, and he had occasion to remark the circular arrangement of the images of a candle round a centre, or the multiplication of the sectors formed by the extremities of the glass plates.
Seite 200 - Now know ye, that in compliance with the said proviso, I, the said John Watson, do hereby declare that the nature of my said Invention, and the manner in which the same is to be performed, are fully described and ascertained in and by the following statements thereof, reference being had to the Drawings hereunto annexed, and to the figures and letters marked thereon...