Philosophical MagazineTaylor & Francis, 1799 |
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1 - 5 találat összesen 39 találatból.
20. oldal
... subject to no determinate ftandard ; but are from 30 to 50 inches high , and from 9 to 16 feet broad . In building each fire , they reserve a number of vents reaching reaching from top to bottom , into which the burning 20 On the ...
... subject to no determinate ftandard ; but are from 30 to 50 inches high , and from 9 to 16 feet broad . In building each fire , they reserve a number of vents reaching reaching from top to bottom , into which the burning 20 On the ...
90. oldal
... subject , he fays , will be again revived by him . I am , fir , To the Editor of the Philofophical Magazine . Your obedient fervant , ROBERT JOHN THORNTON . A REMARKABLE CASE OF SCROPHULA CURED BY VITAL AIR . Mifs Holmer , at 18 , an ...
... subject , he fays , will be again revived by him . I am , fir , To the Editor of the Philofophical Magazine . Your obedient fervant , ROBERT JOHN THORNTON . A REMARKABLE CASE OF SCROPHULA CURED BY VITAL AIR . Mifs Holmer , at 18 , an ...
120. oldal
... experience , and compared the state of the atmosphere with the fituation of the moon , where its activity appeared to be ftrongeft and weakest . From From obfervations made at Padua on this subject , during 120 Toaldo's Syftem.
... experience , and compared the state of the atmosphere with the fituation of the moon , where its activity appeared to be ftrongeft and weakest . From From obfervations made at Padua on this subject , during 120 Toaldo's Syftem.
121. oldal
From obfervations made at Padua on this subject , during the course of fifty years , he at length found that good and bad weather have been always determined by certain fitua- tions of the moon ; and this circumftance furnished him the ...
From obfervations made at Padua on this subject , during the course of fifty years , he at length found that good and bad weather have been always determined by certain fitua- tions of the moon ; and this circumftance furnished him the ...
224. oldal
... subject . THE NEW INSECT . IN our last we informed our readers that a new insect had appeared within thefe few years in this country , which threatens the entire deftruction of all our apple - trees , if means be not generally followed ...
... subject . THE NEW INSECT . IN our last we informed our readers that a new insect had appeared within thefe few years in this country , which threatens the entire deftruction of all our apple - trees , if means be not generally followed ...
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acid affumed againſt alfo almoſt alſo atmoſphere becauſe cafe carbon carbonat carbonic acid caufe cauſe charcoal coaks coal colour confequence confiderable confifts crude iron DAVID MUSHET difcovered diffolved diſtance earth elephants employed exift experiments expofed expoſed fame fcrew fecond fecured feems feen ferve feveral fhall fhould fide fimilar firft firſt fituation fize fmall fnow folid folution fome fometimes foon ftate ftill ftone ftrata ftrong fubftances fubject fuch fufficient fulphur furface furrounded greateſt heat inches increaſe iron-ftone itſelf laft lefs Levant Company lime machine manner meaſure mercury metal mixture moft moſt mountains muft muriat muriatic acid muſt Naples yellow nature neceffary nitrous acid obferved occafion oxyd oxygen paffed Philofoph pit-coal plate poffeffing poffible pounds prefent procefs produced Profeffor purpoſe quantity refpecting refult Ruffia ſmall ſtate ſtone temperature thefe theſe thofe thoſe tion Turkey ufed uſed vapour veffels weight wood
Népszerű szakaszok
305. oldal - A quantity of frefli rofes (for example, forty pounds,) are put in a ftill with fixty pounds of •water, the rofes being left as they are with their calyxes, but with the ftems cut clofe. The mafs is then well mixed together with the hands, and a gentle fire is made under the ftill. When the water begins to grow hot, and fumes to rife, the cap of the ftill is put on, and the pipe fixed : the chinks are then well luted with pafte, and cold water put on the refrigeratory at the top.
187. oldal - It would have been impossible for any of these trees and shrubs to vegetate so near the sea, and below the common level of its water : the waves would cover such tracts of land, and hinder any vegetation. We cannot conceive that the surface of the ocean has ever been lower than it now is ; on the contrary, we are led by...
264. oldal - Pen-knife sharpen'd as keen as a Razor, I cut a piece of it off, and thereby left the surface of it exceeding smooth, then examining it very diligently with a Microscope, me thought I could perceive it to appear a little porous ; but I could not so plainly distinguish them, as to be sure that they were pores, much...
90. oldal - There is nothing in gypfum injurious, if it be free from lime ; it will foon become very dry and light, and the limb may be bathed with fpirits, which will penetrate through the covering. Spirits may be ufed inftead of water, or mixed with it (or vinegar) at the firft making of the plafter.
86. oldal - Virgil calls this fourth day a very sure prophet. If on that day the horns of the moon are clear and well defined, good weather may be expected ; but if they are dull, and not clearly marked on the edges, it is a sign that bad weather will ensue. When the weather remains unchanged on the fourth, fifth, and...
236. oldal - A want, or too great a quantity of dew, being a mark of a strong evaporation, announces rain ; the case is the same with thick, white, hoar frost, which is only dew congealed. J2. The winds which begin to blow in the day time, are much stronger, afld eiv...
136. oldal - This bird, after it was caught, was shut up in a large hen-coop ; and the next morning M. Cronstedt found a young partridge lying dead before the door of the coop.
330. oldal - Fifthly, that the dissolution of sulphureous bodies is made by a substance inherent, and mixt with the Air, that is like, if not the very same, with that which is fixt in Salt-peter, which by multitudes of Experiments that may be made with Saltpeter, will, I think, most evidently be demonstrated.
330. oldal - ... till it be precipitated. Seventhly, That as there is one part that is dissoluble by the Air, so are there other parts with which the parts of the Air mixing and uniting, do make a Coagulum, or precipitation, as one may call it, which causes it to be separated from the Air, but this precipitate is...
329. oldal - Thirdly, that this action of dissolution, produces or generates a very great heat, and that which we call Fire...