Sinopsis
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1803 Excerpt: ... more probably to the stimulus of the air, a mechanical irritation producing the same. A flight compreffion takes away their saculty of ceasing to shine. A piece of the phosphoiic belly put into oil shone but saintly, and jvas soon extinguished. Exsiccation he found to suspend the light, whilst softening in water made it reappear again. Reaumur, Beccari, and Spallanzani, observed the same withrespect to the 'medusa, &c. Carradori, therefore, dissers from Spallanzani, who looks upon the cause of phosphorescence to be a slow combustion; and from Goettling, who attributes it to the siccation of the azot gas; and concludes, that it arises from a diffipation of aggregate light. He supports this against the philosopher of Pavia, upon the experiments of Beckerheim, who has demonstrated that phosphoric insects shine when plunged in gases improper for combustion; and upon those of Beccari, Brugnatelli, and Dusay, who have proved that light may combine and accumulate in bodies, in a greater or.less quantity, according to their capacity for it. experiments Dr. Hulme distinguishes this light emitted by various 'fcseJf?ht bodies from all kinds of artisicial phosphori, by calling it spontaneous, light; and by it's adhering to bodies with some degree of permanency, from that transient fort of light observed in electricity, in meteors, and in other lucid emanations. The substances from which it is emitted are principally living and dead marine animals; of the sirst, are the shellsish, called pholæ, the medusa phosphorea, and other molluscæ; of the second, marine sishes in general, when dead, abound with it. In the class of insects, it is well known, many emit light very copioufly, particularly. several species of sulgora or lantern fly, of lampyris, or glow-w...
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Reseña del editor
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1803 Excerpt: ... more probably to the stimulus of the air, a mechanical irritation producing the same. A flight compreffion takes away their saculty of ceasing to shine. A piece of the phosphoiic belly put into oil shone but saintly, and jvas soon extinguished. Exsiccation he found to suspend the light, whilst softening in water made it reappear again. Reaumur, Beccari, and Spallanzani, observed the same withrespect to the 'medusa, &c. Carradori, therefore, dissers from Spallanzani, who looks upon the cause of phosphorescence to be a slow combustion; and from Goettling, who attributes it to the siccation of the azot gas; and concludes, that it arises from a diffipation of aggregate light. He supports this against the philosopher of Pavia, upon the experiments of Beckerheim, who has demonstrated that phosphoric insects shine when plunged in gases improper for combustion; and upon those of Beccari, Brugnatelli, and Dusay, who have proved that light may combine and accumulate in bodies, in a greater or.less quantity, according to their capacity for it. experiments Dr. Hulme distinguishes this light emitted by various 'fcseJf?ht bodies from all kinds of artisicial phosphori, by calling it spontaneous, light; and by it's adhering to bodies with some degree of permanency, from that transient fort of light observed in electricity, in meteors, and in other lucid emanations. The substances from which it is emitted are principally living and dead marine animals; of the sirst, are the shellsish, called pholæ, the medusa phosphorea, and other molluscæ; of the second, marine sishes in general, when dead, abound with it. In the class of insects, it is well known, many emit light very copioufly, particularly. several species of sulgora or lantern fly, of lampyris, or glow-w...
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