Farther Inquiries Into the Changes Induced on Atmospheric Air: By the Germination of Seeds, the Vegetation of Plants, and the Respiration of AnimalsW. Blackwood, 1811 - 375 من الصفحات |
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عبارات ومصطلحات مألوفة
acid gas action affinity afforded agency of light alkali alkaline matter animal appears atmospheric air attraction blood bodies bonic acid carbonic acid cause chemical chemical affinity circumstances colour of plants colourable matter combination combustion common air confined contained cubic inches decomposed decomposition Dr Priestley effects electricity employed equal etiolated exert exhibit expelled experiments exposed facts farther fluid formed function gases gen gas germination glass green colour heat Hence hydrogen Ibid infusion inverted juices leaf leaves likewise lime lime water living lungs manner ments mercury muriatic acid nature nearly nitrogen nitrogen gas observed operation oxides oxygen gas perfect darkness phenomena Phil Phys portion present produced proportion pure Recherches Chim rendered respiration Saussure says Scheele seed Senebier shade shew shewn similar solar light solution substance sunshine supposed temperature tion Trans trogen vegetation vessels Voltaic pile volume of air yellow
مقاطع مشهورة
الصفحة 207 - small particles of bodies certain powers, virtues, or forces, by which they act at a " distance, not only upon the rays of light for reflecting, refracting, and inflecting them, " but also upon one another, for producing a great part of the phenomena of nature?
الصفحة 207 - I do not here consider. What I call attraction may be performed by impulse, or by some other means unknown to me. I use that Word here to signify only in general any Force by which Bodies tend towards one another, whatsoever be the Cause.
الصفحة 182 - ... being burnished, was evidently copper; but the opposite wire had no such coating. Upon reversing the direction of the current of electricity, the order of the phenomena was of course reversed ; the copper being shortly redissolved by assistance of the oxidating power of positive electricity, and a similar precipitate formed on the opposite wire.
الصفحة 272 - ... much better than in common air, but I had not then given it any name. At this all the company, and Mr. and Mrs. Lavoisier as much as any, expressed great surprise. I told them I had gotten it from precipitate per se, and also from red lead.
الصفحة 252 - Inductio enim, quae procedit per enumerationem simplicem, res puerilis est, et precario concludit, et periculo exponitur ab instantia contradictoria, et plerumque secundum pauciora quam par est, et ex his tantummodo quae praesto sunt, pronunciat. At inductio, quae ad inventionem et demonstrationem scientiarum et artium erit utilis, naturam separare debet, per rejectiones et exclusiones debitas; ac deinde post negativas tot quot sufficiunt, super affirmativas conclu.dere...
الصفحة 178 - ... the oxygen from the acid, and the hydrogen from the water are respectively repelled; and the new combination produced. I have attempted some of the experiments of decomposition and transfer, by means of common electricity, making use of a powerful electrical machine of Mr. Nairne's construction, belonging...
الصفحة 207 - The attractions of gravity, magnetism, and electricity, reach to very sensible distances, and so have been observed by vulgar eyes ; and there may be others which reach to so small distances as hitherto to escape observation ; and perhaps electrical attraction may reach to such small distances, even without being excited by friction.
الصفحة 342 - ... and the free atmosphere almost constantly holds in mechanical suspension solid substances of various kinds. In the common processes of nature, all the products of living beings may be easily conceived to be elicited from known combinations of matter. The compounds of iron, of the alkalies, and earths, with mineral acids, generally abound in soils. From the decomposition of basaltic...
الصفحة 177 - The oxygen of a portion of water is attracted by the positive surface, at the same time that the other constituent part, the hydrogen, is repelled by it; and the opposite process takes place at the negative surface; and in the middle or neutral point of the circuit, whether there be a series of decompositions and recompositions...
الصفحة 210 - Qu. 4. Do not the Rays of Light which fall upon Bodies, and are reflected or refracted, begin to bend before they arrive at the Bodies; and are they not reflected, refracted, and inflected, by one and the same Principle, acting variously in various Circumstances?