Memoirs of the Literary and Philosophical Society of Manchester, Volume 2The Society, 1785 - Natural history |
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Page 95
... transparent substance between the fun and the writings , that served as a fecurity for the fums borrowed , and thus confuming them . But it is not abfolutely certain , that artificial glafs was here meant , as the word Taxos fignifies ...
... transparent substance between the fun and the writings , that served as a fecurity for the fums borrowed , and thus confuming them . But it is not abfolutely certain , that artificial glafs was here meant , as the word Taxos fignifies ...
Page 96
... transparency . Galen makes mention of glass in several places . He appears to have been well ac- quainted with it , and the method of making it . He tells us , that it was made from fand melted in furnaces , which was required to be ...
... transparency . Galen makes mention of glass in several places . He appears to have been well ac- quainted with it , and the method of making it . He tells us , that it was made from fand melted in furnaces , which was required to be ...
Page 141
... Transparent Co- lourlefs Substances . By this means , the philofophical principle is established , and applied to the practical uses of feveral Arts : particularly to thofe of Dying , Paint- ing , ing , and fuch others as depend upon ...
... Transparent Co- lourlefs Substances . By this means , the philofophical principle is established , and applied to the practical uses of feveral Arts : particularly to thofe of Dying , Paint- ing , ing , and fuch others as depend upon ...
Page 142
... Transparent Colourless Media . But , he does not appear to have examined , with equal attention and fuccefs , the properties of Perma- nently Coloured Bodies , and their operations on the the rays of light . And indeed , from the 142 Mr ...
... Transparent Colourless Media . But , he does not appear to have examined , with equal attention and fuccefs , the properties of Perma- nently Coloured Bodies , and their operations on the the rays of light . And indeed , from the 142 Mr ...
Page 146
... Transparent Coloured Liquors , and Glaffes , as well as with opake , and semitransparent bodies . I fhall , in the first place , confider Transparent Coloured Subftances ; because they are of the fimpleft kind , as they confift only of ...
... Transparent Coloured Liquors , and Glaffes , as well as with opake , and semitransparent bodies . I fhall , in the first place , confider Transparent Coloured Subftances ; because they are of the fimpleft kind , as they confift only of ...
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Common terms and phrases
acid alfo alkali alſo animal appears arife atmoſphere becauſe Black bodies cafe calcined caufe cauſe circumftances colouring matter colouring particles confequence confiderable confift conftitution copper courſe denfity diffolved earth eſtabliſhed experiments faid falt fame fays fcience feems fenfe feparated fermentation feven feveral fhall fhew fhould filver fimilar firſt fixed air fluids fmall fociety folid folution fome fpirit ftate ftill fubftances fubject fuch fuffer fufficient fuperior fuppofed fupport furface glafs glaſs himſelf increaſe inflammable inftances inftrument itſelf lefs light liquor maffes metallic moft moſt muft muſt nature neceffary nitre nitrous acid obfervations occafion opake orange colour Orichalcum paffage paffing pellucid perfons phænomena philofopher phlogifton phlogiſtic plants Pliny prefent principle puniſhment purpoſe quantity reafon refembling reflected refrangible rays ſeems ſhall Sir Ifaac Newton Spirit of Wine ſtate thefe theſe thofe thoſe tion tranfmitted Tranſparent uſe veffels vegetables whofe yellow
Popular passages
Page 331 - So it is in contemplation; if a man will begin with certainties, he shall end in doubts; but if he will be content to begin with doubts, he shall end in certainties.
Page 355 - During several of the summer months of the year 1783, when the effects of the sun's rays to heat the earth in these northern regions should have been the greatest, there existed a constant fog over all Europe and great part of North America. This fog was of a permanent nature ; it was dry, and the rays of the sun seemed to have little effect towards dissipating it, as they easily do a moist fog arising from water.
Page 323 - Heraclitus gave a just censure, saying, Men sought truth in their own little worlds, and not in 'the great and common world...
Page 356 - ... whose smoke might be attracted and retained by our earth; or whether it was the vast quantity of smoke, long continuing to issue during the summer from Hecla, in Iceland, and that other volcano which arose out of the sea near that island, which smoke might be spread by various winds over the northern part of the world, is yet uncertain.
Page 334 - And although the arguing from experiments and observations by Induction be no demonstration of general conclusions, yet it is the best way of arguing which the nature of things admits of, and may be looked upon as so much the stronger by how much the Induction is more general.
Page 475 - ... after, he could not help looking upon it with loathing instead of desire ; and it was not till after four days, that his stomach was brought to its natural tone, when the violence of his appetite returned, with a sort of canine eagerness.
Page 118 - But one the lofty follower of the sun, Sad when he sets, shuts up her yellow leaves, Drooping all night; and, when he warm returns, Points her enamour'd bosom to his ray.
Page 253 - Experiments on ferments and fermentation, by which a mode of exciting fermentation in malt liquors, without the aid of yeast, is pointed out, with an attempt to form a new theory of that process. Vol. 2, p. 273. Read April 20, 1785.
Page 365 - Paris was enlarged, the suburbs were insensibly built on the ancient quarries, so that, all that you see without is essentially wanting in the earth, for the foundation of the city : hence proceed the frightful cavities, which are at this time found under the houses in several quarters. They stand upon abysses. It would not require a very violent shock to throw back the stones to the place from whence they have been raised with so much difficulty. Eight men being swallowed up in a gulph one...
Page 141 - ... fo that the light reflected " from the tinging particles may predominate. " In fuch cafes, the colour of the reflected light " will be apt to vary from that of the light