The Philosophical Magazine: Comprehending the Various Branches of Science, the Liberal and Fine Arts, Geology, Agriculture, Manufactures and Commerce, Τόμος 23Richard Taylor and Company, 1806 |
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Άλλες εκδόσεις - Προβολή όλων
The Philosophical Magazine: Comprehending the Various Branches of ..., Τόμος 41 Πλήρης προβολή - 1813 |
The Philosophical Magazine: Comprehending the Various Branches of ..., Τόμος 21 Πλήρης προβολή - 1805 |
The Philosophical Magazine: Comprehending the Various Branches of ..., Τόμος 22 Πλήρης προβολή - 1805 |
Συχνά εμφανιζόμενοι όροι και φράσεις
admitted alcohol alkali ammonia animal appear Arcturus ascertained atmosphere azote barometers body boiling bottom carbonic acid chemical cobalt cold colour communication considerable contains crystals cylinder decomposed degree dissolved distilled effect employed equal equatropical motions evaporated experiments fluid formed gallic acid glass grain heat hydrogen inch institution iron isinglass lime liquor matter mercury metal mixed mixture muriatic acid muscles muscular nature nearly nickel nitric acid nitrous observed obtained operation ounces oxide oxide of nickel oxygen parallactic motion particles phænomena phosphate phosphoric acid piston plate portion potash precipitate produced proper motions proportion quantity real motion rendered residuum resin right ascension salt separated Sirius society soil solar motion soluble solution specific gravity stance stars steam sulphate sulphuric acid tannin tanning substance temperature tion uric acid urine vaccine vapour variolous vegetable vessel wool yellow
Δημοφιλή αποσπάσματα
Σελίδα 277 - ... or other disposition of any messuages, lands, tenements, or hereditaments, belonging to the said body politic and corporate, shall be made, except with the approbation and concurrence of a general meeting.
Σελίδα 187 - You will excuse — you will justify my being overwhelmed with sorrow ; and accept the assurance of my devotion, and the high consideration with which I have the honour to be, Sir, your very humble and very obedient servant, '* A. MAVROCORDATO. " To J. .Bowring, Esq. " Secretary to the Greek Committee.
Σελίδα 349 - If 100 measures of common air be admitted to 72 of nitrous gas in a wide vessel over water, such as to form a thin stratum of air, and an immediate momentary agitation be used, there will, as before, be found 79 or 80 measures of pure azotic gas [nitrogen] for a residuum.
Σελίδα 41 - In supplying animal or vegetable manure, a temporary food only is provided for plants, which is in all cases exhausted by means of a certain number of crops ; but when a soil is rendered of the best possible constitution and texture, with regard to its earthy parts, its fertility may be considered as permanently established. It becomes capable of attracting a very large portion of vegetable nourishment from the atmosphere, and of producing its crops with comparatively little labour and expense.
Σελίδα 148 - ... of the satellites: all the parts of the system of Saturn occasionally reflecting light to each other: the rings and moons illuminating the nights of the Saturnian: the globe and...
Σελίδα 278 - Arts, on the establishment of the ^riiisjj institution ; the principal object whereof is to encourage and reward the talents of the Artists of the United Kingdom, and to open an Exhibition for the sale of their productions. For the attainment of this object we earnestly solicit your assistance and patronage ; requesting to be favoured with your directions, in which of the classes of Subscription you will permit your name to be enrolled.
Σελίδα 29 - ... ground glass stoppers. The quantity of soil most convenient for a perfect analysis is from two to four hundred grains. It should be collected in dry weather, and exposed to the atmosphere till it becomes dry to the touch. The specific gravity of a soil, or the relation of its weight to that of water, may be ascertained by introducing into a phial, which...
Σελίδα 37 - In the first trials that are made by persons unacquainted with chemistry, they must not expect much precision of result. Many difficulties will be met with : but in overcoming them, the most useful kind of practical knowledge will be obtained ; and nothing is so instructive in experimental science...
Σελίδα 32 - ... matter, the respective quantities may be ascertained by weighing the residuum after the action of the acid, which must be applied till the mixture has acquired a sour taste, and has ceased to effervesce. This residuum is the...
Σελίδα 30 - Soils, though as dry as they can be made by continued exposure to air, in all cases still contain a considerable quantity of water, which adheres with great obstinacy to the earths and animal and vegetable matter, and can only be driven off from them by a considerable degree of heat. The first process of analysis is, to free the given weight of soil from as much of this water as possible without in other respects affecting its composition ; and this may be done by heating it for ten or twelve minutes...