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Страница 347 - A quantity of frefli rofes (for example, forty pounds,) are put in a ftill with fixty pounds of •water, the rofes being left as they are with their calyxes, but with the ftems cut clofe. The mafs is then well mixed together with the hands, and a gentle fire is made under the ftill. When the water begins to grow hot, and fumes to rife, the cap of the ftill is put on, and the pipe fixed : the chinks are then well luted with pafte, and cold water put on the refrigeratory at the top.
Страница 293 - It would have been impossible for any of these trees and shrubs to vegetate so near the sea, and below the common level of its water : the waves would cover such tracts of land, and hinder any vegetation. We cannot conceive that the surface of the ocean has ever been lower than it now is ; on the contrary, we are led by...
Страница 304 - Pen-knife sharpen'd as keen as a Razor, I cut a piece of it off, and thereby left the surface of it exceeding smooth, then examining it very diligently with a Microscope, me thought I could perceive it to appear a little porous ; but I could not so plainly distinguish them, as to be sure that they were pores, much...
Страница 128 - There is nothing in gypfum injurious, if it be free from lime ; it will foon become very dry and light, and the limb may be bathed with fpirits, which will penetrate through the covering. Spirits may be ufed inftead of water, or mixed with it (or vinegar) at the firft making of the plafter.
Страница 124 - Virgil calls this fourth day a very sure prophet. If on that day the horns of the moon are clear and well defined, good weather may be expected ; but if they are dull, and not clearly marked on the edges, it is a sign that bad weather will ensue. When the weather remains unchanged on the fourth, fifth, and...
Страница 372 - A want, or too great a quantity of dew, being a mark of a strong evaporation, announces rain ; the case is the same with thick, white, hoar frost, which is only dew congealed. J2. The winds which begin to blow in the day time, are much stronger, afld eiv...
Страница 176 - This bird, after it was caught, was shut up in a large hen-coop ; and the next morning M. Cronstedt found a young partridge lying dead before the door of the coop.
Страница 372 - Fifthly, that the dissolution of sulphureous bodies is made by a substance inherent, and mixt with the Air, that is like, if not the very same, with that which is fixt in Salt-peter, which by multitudes of Experiments that may be made with Saltpeter, will, I think, most evidently be demonstrated.
Страница 372 - ... till it be precipitated. Seventhly, That as there is one part that is dissoluble by the Air, so are there other parts with which the parts of the Air mixing and uniting, do make a Coagulum, or precipitation, as one may call it, which causes it to be separated from the Air, but this precipitate is...