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Página 161 - It seems possible to account for all the phenomena of heat, if it be supposed that in solids the particles are in a constant state of vibratory motion, the particles of the hottest bodies moving with the greatest velocity...
Página 71 - ... if the electrical power which holds the elements of a grain of water in combination, or which makes a grain of oxygen and hydrogen in the right proportions unite into water when they are made to combine, could be thrown into the condition of a current, it would exactly equal the current required for the separation of that grain of water into its elements again.
Página 316 - Winchester, who died in 868, desired that he might be buried in the open churchyard, and not in the chancel of the minster, as was usual with other bishops, and his request was complied with ; but the monks, on his being canonized, considering it disgraceful for the saint to lie in a public cemetery, resolved to remove his body into the choir, which was to have been done with solemn procession, on the 15th of July : it rained, however, so violently for forty days together at this season, that the...
Página 538 - Fix on a smooth part of the side of the stock, rather from than towards the sun, and of a height depending, as in grafting, on whether dwarf, half, or whole standard trees are desired; then, with the budding-knife, make a horizontal cut across the rind, quite through to the firm wood ; from the middle of this transverse cut make a slit downward, perpendicularly, an inch or more long, going also quite through to the wood. This done, proceed with all expedition to take off a bud ; holding the cutting...
Página 316 - He was singular for his desire to be buried in the open churchyard, and not in the chancel of the minster, as was usual with other bishops...
Página 70 - ... discharge took place through the heated air, in a space equal at least to four inches, producing a most brilliant ascending arch of light, broad, and conical in form in the middle.* When any substance was introduced into this arch, it instantly became ignited ; platina melted as readily in it as wax in the flame of a common candle ; quartz, the sapphire, magnesia, lime, all entered into fusion...
Página 7 - ... in the soil must be particularly favourable to the wheat crop in preserving a genial temperature beneath the surface late in autumn, and during winter. Again, it is a general principle in chemistry, that in all cases of decomposition, substances combine much more readily at the moment of their disengagement, than after they have been perfectly formed. And in fermentation beneath the soil, the fluid matter produced is applied instantly, even whilst it is warm, to the organs of the plant, and consequently...
Página 319 - ... voluntary, motion. Vegetables are organized, supported by air and food, endowed with life, and subject to death as well as animals. They have in some instances spontaneous, though we know not that they have voluntary motion. They are sensible to the action of nourishment, air, and light, and 17ft NATURAL HISTORY.
Página 5 - From the great difference of the causes that influence the productiveness of lands, it is obvious, that in the present state of science, no certain system can be devised for their improvement, independent of experiment ; but there are few cases in which the labour of analytical trials will not be amply repaid by the certainty with which they denote the best methods of melioration ; and this will particularly happen, when the defect of composition is found in the proportions of the primitive earths....
Página 318 - If the human understanding can in any case flatter itself with obtaining, in the natural world, a glimpse of the immediate agency of the Deity, it is in the contemplation of this vital principle, which seems independent of material organization, and an impulse of his own divine energy.