The Chemical Catechism: With Notes, Illustrations, and Experimentsauthor; and sold, 1814 - 562 pages |
From inside the book
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Page 12
... quantity necessary for each process . After all , his colours will be liable to vary , if he do not take into the ac- count , and calculate upon , the changes which take place in them by the absorption of oxygen ; a knowledge of which ...
... quantity necessary for each process . After all , his colours will be liable to vary , if he do not take into the ac- count , and calculate upon , the changes which take place in them by the absorption of oxygen ; a knowledge of which ...
Page 17
... quantity of that article . He will be aware of the advantage to be derived from oxidizing the soap while boiling . A ... quantities of candles are used , as 17.
... quantity of that article . He will be aware of the advantage to be derived from oxidizing the soap while boiling . A ... quantities of candles are used , as 17.
Page 36
... quantity of water in any given portion of atmospheric air . There is a great variety of these instruments , all made with porous substances , which contract and dilate according to the dryness or moisture of the air . Slips of whale ...
... quantity of water in any given portion of atmospheric air . There is a great variety of these instruments , all made with porous substances , which contract and dilate according to the dryness or moisture of the air . Slips of whale ...
Page 41
... quantity of caloric in combination with the aqueous vapours . Were it not for the cold produced by evaporation , we should faint under any great bodily exertion , or die by excessive heat . But Nature , always provident , has furnished ...
... quantity of caloric in combination with the aqueous vapours . Were it not for the cold produced by evaporation , we should faint under any great bodily exertion , or die by excessive heat . But Nature , always provident , has furnished ...
Page 42
... quantity of air within it , and put under the receiver of an air pump , it will be seen to inflate gradually as the pump is exhausted , till it becomes of its full size ; owing to the elasticity of the small quantity of air within the ...
... quantity of air within it , and put under the receiver of an air pump , it will be seen to inflate gradually as the pump is exhausted , till it becomes of its full size ; owing to the elasticity of the small quantity of air within the ...
Common terms and phrases
absorb acetate acid gas Additional Notes affinity alkalies alumine ammonia animal antimony arsenic atmospheric air barytes beautiful become bismuth blue bodies boiling burning called caloric carbonic acid charcoal chemical chemical affinity Chemistry chemists cold colour combination combustion common compound contains converted copper crystals decomposed decomposition degree dissolved distillation Ditto earth effect employed evaporation experiment fire fluid found native Fourcroy gases glass gold grains heat hydrogen hydrogen gas insoluble iron lime liquid liquor magnesia manganese manufacture melted mercury metallic oxides mineral mixed mixture muriate of soda muriatic acid nature nitrate nitric acid nitrogen nitrous ounce oxide oxygen gas oxymuriatic acid particles phial phosphoric acid phosphorus platina portion potass powder precipitate procured produced properties pure quantity render Salts formed silex silver solid soluble solution specific gravity strontian substances sulphate sulphuret sulphuric acid surface temperature thermometer tion vapour vegetable vessel weight zinc
Popular passages
Page 344 - Full many a gem of purest ray serene The dark unfathom'd caves of ocean bear : Full many a flower is born to blush unseen, And waste its sweetness on the desert air. Some village- Hampden, that, with dauntless breast, The little tyrant of his fields withstood, Some mute inglorious Milton here may rest, Some Cromwell guiltless of his country's blood. Th...
Page 383 - Or hear'st thou rather pure ethereal stream, Whose fountain who shall tell ? before the sun, Before the heavens thou wert, and at the voice Of God, as with a mantle, didst invest The rising world of waters dark and deep, Won from the void and formless infinite.
Page 111 - Wide roams. the Russian exile. Nought around Strikes his sad eye, but deserts lost in snow; And heavy-loaded groves; and solid floods, That stretch athwart the solitary vast Their icy horrors to the frozen main; And cheerless towns far-distant, never bless'd, Save when its annual course the caravan Bends to the golden coast of rich Cathay *, With news of human kind.
Page 98 - Soon shall thy arm, unconquered steam, afar Drag the slow barge, or drive the rapid car ; Or on wide waving wings expanded bear The flying chariot through the fields of air...
Page 458 - ... in a state of intense activity ; and a platina wire, communicating with the positive side, was brought in contact with the upper surface of the alkali. The whole apparatus was in the open atmosphere.
Page 414 - And how well doth it execute its office! An anatomist, who understood the structure of the heart, might say beforehand that it would play; but he would expect, I think, from the complexity of its mechanism, and the delicacy of many of its parts, that it should always be liable to derangement, or that it would soon work itself out. Yet shall this wonderful machine go, night and day, for eighty years together, at the rate of a hundred thousand strokes every twenty-four hours, having, at every stroke,...
Page 446 - To enrich thy walls: but thou didst hew the floods, And make thy marble of the glassy wave.
Page 114 - That, ever busy, wheels the silent spheres; Works in the secret deep; shoots, steaming, thence The fair profusion that o'erspreads the Spring: Flings from the sun direct the flaming day; Feeds every creature ; hurls the tempest forth ; And, as on earth this grateful change revolves, With transport touches all the springs of life.
Page 448 - ... that hydrogen, the alkaline substances, the metals, and certain metallic oxides, are attracted by negatively electrified metallic surfaces, and repelled by positively electrified metallic surfaces ; and contrariwise, that oxygen and acid substances are attracted by positively electrified metallic surfaces, and repelled by negatively electrified metallic surfaces ; and these attractive and repulsive forces are sufficiently energetic to destroy or suspend the usual operation of elective affinity.
Page 71 - As home he goes beneath the joyous moon. Ye that keep watch in heaven, as earth asleep Unconscious lies, effuse your mildest beams, Ye Constellations, while your angels strike, Amid the spangled sky, the silver lyre. Great Source of day, best image here below Of thy Creator, ever pouring wide, From world to world, the vital ocean round, On Nature write with every beam his praise.