Chemical Manipulation: Being Instructions to Students in Chemistry, on the Methods of Performing Experiments of Demonstration Or of Research, with Accuracy and SuccessCarey and Lea, 1831 - 689 páginas |
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Otras ediciones - Ver todas
Chemical Manipulation, Being Instructions to Students in Chemistry, on the ... John Kearsley Mitchell,Michael Faraday Sin vista previa disponible - 2015 |
Términos y frases comunes
advantage alkali allowed ammonia aperture apparatus applied ascertained baryta basin blow-pipe body bottle bottom bulb caoutchouc carbonate charcoal chemical chlorine clean closed condensation consequence convenient cooling cork crucible crystals cubic inches described distillation easily edge effect electrometer equal evaporation experiments filled filter finger flame flask Florence flasks fluid frequently funnel furnace gases gasometer glass tube graduated half an inch heat inch in diameter instrument introduced iron laboratory lamp latter liquid lute manner mercury metal mixture mortar mouth muriatic muriatic acid necessary neck nitric acid observed obtained occasion operation oxide oxygen paper pass pestle piece plate platinum portion potash precipitate pressure prevent pulverized purpose quantity removed retained retort round sand-bath side soluble solution specific gravity stop-cock stopper substance sufficient sulphuric acid surface temperature thermometer thick tight tion trough tube vapour vessel weight whilst wire
Pasajes populares
Página 64 - A solid immersed in a liquid is buoyed up by a force equal to the weight of the liquid displaced.
Página 685 - Education. If the encouragement to the publishers should correspond with the testimony in favor of their enterprise, and the beautiful and faithful style of its execution, the hazard of the undertaking, bold as it was, will be well compensated ; and our libraries will be enriched by the most generally useful encyclopedic dictionary that has been offered to the readers of the English language. Full enough for the general scholar, and plain enough for every capacity, it is far more convenient, in every...
Página 67 - I can learn the weight of any little mass from one grain, or a little more, to the y^^ of a grain. For if the thing to be weighed weighs one grain, it will, when placed on one extremity of the beam, counterpoise the large gold weight at the other extremity.
Página 666 - Lime water being introduced in sufficient quantity into the inverted bell glass,1 another smaller bell glass, C, is supported! within it, as represented in this figure. Both of the bells have perforated necks. The inverted bell is furnished with a brass cap, having a stuffing-box attached to it, through which the tube D, of copper, slides air-tight.
Página 67 - ... also a number of small rings of fine brass wire made in the manner first mentioned by Mr. Lewis, by appending a weight to the wire, and coiling it with the tension of that weight round a thicker brass wire in a close spiral, after which the extremity of the spiral being tied hard with waxed thread, I put the covered wire in a vice, and applying a sharp knife which is struck...
Página 324 - Such a trough is best made of japanned copper, and supported in a wooden frame, so as to stand about 39 inches from the ground. Two depressions like small wells, should be made in the shelf, each about seven inches long, two wide, and one and a half deep; they should be placed with one of their narrowest ends about one inch and a half from the end of the shelf which is furthest from the well, and about eight inches apart. These depressions are to receive the beaks of retorts delivering gas into jars...
Página 54 - The two parts communicate at b by an extremely fine slit, which suffers air to pass, but retains sand or powder. The mouth at a is ground smooth, and can be shut so as to be air-tight by a small glass plate /. The substance whose specific gravity we wish to find is fint reduced to powder.
Página 67 - If on the contrary it weigh one grain and a fraction, it will be counterpoised by the heavy gold weight at the extremity, and one or more of the lighter ones placed in some other part of the beam. This beam...
Página 685 - The American Biography, which is very extensive, has been furnished by MR. WALSH, who has long paid particular attention to that branch of our literature, and from materials in the collection of which he has been engaged for some years. For obvious reasons, the notices of distinguished Americans are confined to deceased individuals: the European biography contains notices of all distinguished living characters, as well as those of past times. The articles on Zoology and the...
Página 685 - The copious information which this work affords on American subjects, fully justifies its title of an American Dictionary; while at the same time the extent, variety, and felicitous disposition of its topics, make it the most convenient and satisfactory Encyclopedia that we have ever seen.