Comentarios de usuarios - Escribir una reseña
No hemos encontrado ninguna reseña en los sitios habituales.
Otras ediciones - Ver todo
acid afford agitation animals antimony appears Aqua fortis Aqua regia cafes camphire Caput mortuum cause chymical chymists coagulated cold colour common considerable copper corpuscles cou'd cure dissolved distill'd distillation earth easily effects effluvia employ'd experiment fair water fame farther figure fire fluidity glass gold heat ingredients instance iron kind liquor load-stone magnetical matter mechanical medicines melted menstruum mercury metal metalline mineral mixture motion natural bodies natural philosophy naturalist observ'd observed oil of vitriol operation particles particular peculiar phenomena philosophy phlegm physicians Physics piece pores powder precipitate produced properties qualities quantity quick-silver rectified spirit sal-armoniac saline salt of tartar salt-petre seems shew silver solid solution sometimes spirit of nitre spirit of salt spirit of wine stone strong sublimate substance substantial forms sulphur surface surprizing taste texture thereby things thro tion urine vessel virtue volatile weight whence wherein whereof whilst wou'd
Página 209 - ... even so very hard as never to wear or break in pieces ; no ordinary power being able to divide what God himself made one, in the first creation. While the particles continue entire, they may compose bodies of one and the same nature and texture in all ages ; but should they wear away or break in pieces, the nature of things depending on them would be changed.
Página 488 - Cairo ; but the most ingenious was a nest of four-legged serpents, of two feet long, black and ugly, kept by a Frenchman ; who, when he came to handle them, they would not endure him, but ran and hid in their hole ; then would he take...
Página 223 - Seeing therefore the variety of Motion which we find in the World is always decreasing, there is a necessity of conserving and recruiting it by active Principles, such as are the cause of Gravity, by which Planets and Comets keep their Motions in their Orbs, and Bodies acquire great Motion in falling; and the cause of Fermentation, by which the Heart and Blood of Animals are kept in perpetual Motion and Heat; the inward Parts of the Earth are...
Página 223 - The vis inertiae is a passive Principle by which Bodies persist in their Motion or Rest, receive Motion in proportion to the Force impressing it, and resist as much as they are resisted. By this Principle alone there never could have been any Motion in the World.
Página 155 - Useful Philosophy," says: " A friend of mine found in his own land a parcel of ore, which seemed to be copper. After fusion it yielded very good copper, but the person to whom he committed the examination being extraordinary skilful, found besides the copper a considerable quantity of silver, and in that silver a good portion of gold.
Página 14 - him from the creation of the world are clearly feen, " being underftood by the things that are made, even " his eternal power and godhead...
Página 568 - ... that the heat acquired by the forged piece of iron was not communicated by the hammer or anvil as heat, but produced in it by motion, which was great enough to put so small a body as the piece of iron into a strong and confused motion of its parts without being able to have the like operation upon so much greater masses of metal as the hammer and the anvil. And now I * On this point Bacon also was perfectly clear.
Página 195 - And when the chymists shall show that mixed bodies owe their qualities to the predominance of any one of their three grand ingredients, the corpuscularians will show that the very qualities of this or that ingredient flow from its peculiar texture, and the mechanical properties of the corpuscles that compose it.
Página 202 - ... is called an organ of sense, we must consider, I say, that these sensories may be wrought upon by the figure, shape, motion, and texture of bodies without them after several ways, some of those external bodies being fitted to affect the eye, others the ear, others the nostrils, etc.