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Сторінка 225 - The castled crag of Drachenfels("> Frowns o'er the wide and winding Rhine, Whose breast of waters broadly swells Between the banks which bear the vine, And hills all rich with blossom'd trees, And fields which promise corn and wine, And scatter'd cities crowning these, Whose far white walls along them shine, Have strew'da scene, which I should see With double joy wert thou with me ! 2.
Сторінка 225 - The river nobly foams and flows, The charm of this enchanted ground, And all its thousand turns disclose Some fresher beauty varying round; The haughtiest breast its wish might bound Through life to dwell delighted here; Nor could on earth a spot be found To nature and to me so dear, Could thy dear eyes in following mine Still sweeten more these banks of Rhine!
Сторінка 297 - Carbonic acid, water and ammonia, contain the elements necessary for the support of animals and vegetables. The same substances are the ultimate products of the chemical processes of decay and putrefaction. All the innumerable products of vitality resume, after death, the original form from which they sprung. And thus death — the complete dissolution of an existing generation — becomes the source of life for a new one.
Сторінка 560 - To collect air at different elevations. To note the height and kind of clouds, their density and thickness at different elevations. To determine the rate and direction of different currents in the atmosphere if possible. To make observations on sound. To note atmospherical phenomena in general, and to make general observations.
Сторінка 649 - ... and that between each burst of vapour the water reaches a temperature above its boiling point. To effect this it is necessary that the water be boiled in a tube with a narrow orifice, through which the vapour issues ; if it be boiled in an open vessel it continually re-absorbs air, and boils in the ordinary way.
Сторінка 642 - ... were worn out. The advantages of the steel boiler are strength, lightness, rapidity of evaporation, durability under heat, the securing of more perfect riveting, and comparative freedom fi-< m scale.
Сторінка 507 - Transactions of the Society for the Promotion of Useful Arts in the State of New York (Albany, 1807), II, 121, 125.
Сторінка 75 - A protecting duty, continued for a reasonable time, will sometimes be the least inconvenient mode in which the nation can tax itself for the support of such an experiment.
Сторінка 638 - ENGINE. A new caloric engine, invented by Mr. Roper of Boston, Mass, has the following peculiarities. It is designed to be used where small power is required ; and the main novelty about it is, that it does not use, upon the piston, common air heated, but only the products of combustion. The air to supply oxygen for the combustion of anthracite coal is pumped in ; the...
Сторінка 373 - When somewhat cooled add the turpentime, and last the alcohol in small quantities, stirring the mass constantly. Should the alcohol cause it to lump, warm again until it melts. Keep in a bottle. Lay it on in a very thin coat with a brush. In a room of moderate temperature the wax should be of the consistence of molasses. Should it prove thicker, thin it down with alcohol. It is always ready for use; it is never affected by heat or cold, and heals up wounds hermetically.