Philosophical Transactions of the Royal Society of London, Volumen 102W. Bowyer and J. Nichols for Lockyer Davis, printer to the Royal Society, 1812 |
Dentro del libro
Resultados 1-5 de 12
Página 95
... hydrogen gas . The coal which remains in the retort is of difficult incinera- tion ; it contains a considerable portion of muriat of soda and of phosphat of lime , and yields very slight traces of iron . C. 1. The serous part of the ...
... hydrogen gas . The coal which remains in the retort is of difficult incinera- tion ; it contains a considerable portion of muriat of soda and of phosphat of lime , and yields very slight traces of iron . C. 1. The serous part of the ...
Página 114
... hydrogen from that fluid , and that its various tints are dependent upon such modifications of animal matter , and not , as some have assumed , upon the different states of oxidizement of the iron which it has been supposed to contain ...
... hydrogen from that fluid , and that its various tints are dependent upon such modifications of animal matter , and not , as some have assumed , upon the different states of oxidizement of the iron which it has been supposed to contain ...
Página 239
... hydrogen evolved , relatively to the original bulk of the gas . * Yet , notwithstanding these results , I have ex- pressed myself inclined to believe that some water is abstracted by that deliquescent salt ; and this belief was ...
... hydrogen evolved , relatively to the original bulk of the gas . * Yet , notwithstanding these results , I have ex- pressed myself inclined to believe that some water is abstracted by that deliquescent salt ; and this belief was ...
Página 240
... hydrogen . Recent experiments , also , have confirmed the accuracy of the obser- vation , * that when a certain effect has been produced by elec- tricity , nothing is gained by continuing the process ; for neither is more hydrogen ...
... hydrogen . Recent experiments , also , have confirmed the accuracy of the obser- vation , * that when a certain effect has been produced by elec- tricity , nothing is gained by continuing the process ; for neither is more hydrogen ...
Página 241
... hydrogen evolved , in- stead of being more than in the former experiment , equalled in bulk only 20 grains of mercury . The production of oxy- muriatic acid was sufficiently evinced by its effect in tarnishing some very small globules ...
... hydrogen evolved , in- stead of being more than in the former experiment , equalled in bulk only 20 grains of mercury . The production of oxy- muriatic acid was sufficiently evinced by its effect in tarnishing some very small globules ...
Otras ediciones - Ver todo
Términos y frases comunes
1+r² acid gas action ammonia angle animal appears arc tang arsenic ascertain attracted point Barom bismuth blood carbonic acid centre chlorine chyle colouring matter combinations comet compound contain cosines cubic inches cuprane curve cylinder decomposed degree denote distance equal equation experiments expression Fair fluent fluid fluoric acid gas fluxions gizzard grains Hazy heat hydrogene infinitely LAPLACE liquor MDCCCXII membrane mercury meridian metal METEOROLOGICAL JOURNAL minutes muriatic acid nearly nitric acid observations oxide oxygene perpendicular phosphoric acid phosphorus plane poison polygon portion precipitated prism produced Prop proportion pyramid quantity radius Rain rational and integral respiration ribs side silex silicated fluoric acid sine solid solution solvent glands sphere spheroid stannane stomach subsilicated substance sulphuret sulphuric acid supposed surface SW 1 Cloudy tail tendrils term Therm tion toises triangle tube vertex
Pasajes populares
Página 155 - June i5th, having the Consul and some other friends on board, I weighed, and proceeded with the ship towards the volcano, with the intention of witnessing a night view ; but in this expectation we were greatly disappointed, from the wind freshening and the weather becoming thick and hazy, and also from the volcano itself being clearly more quiescent than it was the preceding day. It seldom emitted any lightning, but occasionally as much flame as may be seen to issue from the top of a glass-house...
Página 156 - NW part of the island, after dark on the 16th, we witnessed one or two eruptions that, had the ship been near enough, would have been awfully grand. It appeared one continued blaze of lightning ; but the distance which it was at from the ship, upwards of twenty miles, prevented our seeing it with effect. Returning again towards St. Michael's on the 4th of July...
Página 152 - January having fotally subsided, and the present one having only burst forth two days prior to our approach, and about three miles distant from the one before alluded to. Desirous of examining as minutely as possible a contention so extraordinary between two such powerful elements, I set off from the city of Ponta del Gada on the morning of the 14th, in company with Mr.
Página 158 - I found the complete skeleton of a guard fish, the bones of which being perfectly burnt, fell to pieces upon attempting to take them up; and by the account of the inhabitants on the coast of St. Michael's, great numbers of fish had been destroyed during the early part of the eruption, as large quantities, probably suffocated or poisoned, were occasionally found drifted into the small inlets or bays. The island, like other volcanic productions, is composed principally of porous substances, and generally...
Página 155 - ... feet. The great eruptions were generally attended with a noise like the continued firing of cannon and musquetry intermixed, as also with slight shocks of earthquakes, several of which having been felt by my companions, but none by myself, I had become half sceptical, and thought their opinion arose merely from the force of imagination: but, while we were sitting within five or six yards of the edge of the cliff, partaking of a slight repast which had been brought with us, and were all busily...
Página 153 - As the impetus with which the columns were severally propelled diminished, and their ascending motion had nearly ceased, they broke into various branches resembling a group of pines ; these again, forming themselves into festoons of white feathery smoke in the most fanciful manner imaginable, intermixed with the finest particles of falling ashes, which at one time assumed the appearance of innumerable plumes of black and white ostrich feathers surmounting each other...
Página 156 - We found a narrow beach of black ashes, from which the side of the island rose in general too steep to admit of our ascending ; and where we could have clambered up, the mass of matter was much too hot to allow our proceeding more than a few yards in the ascent. The declivity below the surface of the sea was equally steep, having seven fathoms water, scarce the boat's length from the shore, and at the distance of twenty or thirty yards we sounded five and twenty fathoms.
Página 157 - ... of the island by a narrow ridge of cinders and lava, as an isthmus of from forty to fifty feet in length, from which the crater rose in the form of an amphitheatre. This cliff, at two or three miles distance from the island, had the appearance of a work of art resembling a small fort or block house. The top of this we were determined, if possible, to attain ; but the difficulty...
Página 210 - ... through the divided veins. From this analogy, and from all the circumstances just mentioned, it may be inferred that arsenic, in whatever way it is administered, does not produce its effects even on the stomach until it is carried into the blood. " But the blood is not necessary to life, except so far as a constant supply of it is necessary for the maintenance of the functions of the vital organs. The next object of inquiry therefore is, when arsenic has entered the circulation, on what organs...
Página 165 - ... middle tendon, so that the lower half of each rib which is beyond the origin of this muscle, and which is only laterally connected to it by loose cellular membrane, is external to the belly of the animal, and is used for the purpose of progressive motion ; while that half of each rib next the spine, as far as the lungs extend, is employed in respiration. At the termination of each rib is a small cartilage in shape corresponding to the rib, only tapering to the point. Those of the opposite ribs...