도서 본문에서
9개의 결과 중 1 - 5개
29 페이지
... chlorine and the feebleness of the light of those flames in which gaseous and volatile matter alone is produced ; such as those of hydrogen , and sulphur in oxygen , phosphorus in chlorine , & c . 66 Thirdly , It offers means of ...
... chlorine and the feebleness of the light of those flames in which gaseous and volatile matter alone is produced ; such as those of hydrogen , and sulphur in oxygen , phosphorus in chlorine , & c . 66 Thirdly , It offers means of ...
30 페이지
... chlorine on flame ; and it is probable in many of those cases , when the colour of flame is changed by the introduction of incombustible compounds , that the effect depends upon the production and subse- quent ignition or combustion of ...
... chlorine on flame ; and it is probable in many of those cases , when the colour of flame is changed by the introduction of incombustible compounds , that the effect depends upon the production and subse- quent ignition or combustion of ...
61 페이지
... Chlorine ; " the other , " New Experiments on some of the Combinations of Phosphorus . " In the first he showed , by simple and decisive experiments , that the error of conclu- sion relative to the production of water and the de ...
... Chlorine ; " the other , " New Experiments on some of the Combinations of Phosphorus . " In the first he showed , by simple and decisive experiments , that the error of conclu- sion relative to the production of water and the de ...
118 페이지
... chlorine and ether , which have either the effect of decomposing or dissolving the bituminous matter formed , by which the leaves of the MSS . adhere , and the employing of a graduated temperature . These methods answered fully his ...
... chlorine and ether , which have either the effect of decomposing or dissolving the bituminous matter formed , by which the leaves of the MSS . adhere , and the employing of a graduated temperature . These methods answered fully his ...
126 페이지
... chlorine or the metallic basis of the fixed alkalies , as soon as they were " seized upon and illustrated by an humble class of inquirers . " My brother quitted Naples early in spring . In a letter to my mother from Rome , of the 13th ...
... chlorine or the metallic basis of the fixed alkalies , as soon as they were " seized upon and illustrated by an humble class of inquirers . " My brother quitted Naples early in spring . In a letter to my mother from Rome , of the 13th ...
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agreeable amused animals appeared beautiful believe birds bright brother caught char character chemical clouds coal gas Colliery colour combustion common snipe copper copper sheathing Davy lamp dear John dialogue dinner discovery double snipe Drave Edersee eels effect electricity experiments explosive mixture favour feeling fire-damp fish flame give grayling green heat hope hucho human ignited Illyria inflammable inquiry instinct journey kind labour lake Laybach letter light Limeric manner ment metal mind morning mountains o'clock O'Donoghue object observations paper passed persons philosopher pines pound pursuits quantity rain Ravenna reason remarkable rise river road rock Rome Ross Castle Royal Society safety lamp salmon Salmonia scenery seen shooting Sir Humphry snow soon stream surface Sweno temperature thermometer tion Traun trout views whilst wire gauze wire of platinum wood Wurzen
인기 인용구
288 페이지 - The swallow is one of my favourite birds, and a rival of the nightingale ; for he glads my sense of seeing as much as the other does my sense of hearing. He is the joyous prophet of the year — the harbinger of the best season...
290 페이지 - But what is that large bird soaring above the pointed rock, towards the end of the lake ? Surely it is an eagle...
51 페이지 - No ! my good friend, I never thought of such a thing : my sole object was to serve the cause of humanity ; and if I have succeeded, I am amply rewarded in the gratifying reflection of having done so.
283 페이지 - Angler, by Walton and Cotton. The characters, chosen to support these Conversations, are — HALLEUS, who is supposed to be an accomplished fly-fisher ; ORNITHER, who is to be regarded as a gentleman generally fond of the sports of the field, though not a finished master of the art of angling ; POIETES, who is to be considered as an enthusiastic lover of nature, and partially acquainted with the mysteries of fly-fishing ; and PHYSICUS, who is described uninitiated as an angler, but as a person fond...
403 페이지 - I value it,' he used to say with the kindliest exultation, ' more than anything I ever did : it was the result of a great deal of investigation and labour; but if my directions be attended to, it will save the lives of thousands of poor men.
406 페이지 - Some people say I ought not to accept this prize, and there have been foolish paragraphs in the papers to that effect ; but if the two countries or governments are at war, the men of science are not. That would indeed be a civil war of the worst description ; we should rather, through the instrumentality of men of science, soften the asperities of national hostility.
6 페이지 - In exploding a mixture of 1 part of gas from the distillation of coal, and 8 parts of air in a tube of a quarter of an inch in diameter, and a foot long, more than a second was required before the flame reached from one end of the tube to the other ; and...
159 페이지 - ... increased, and the undulations were feebler. At a smaller distance the surface of the mercury became plane ; and rotation slowly began round the wire. As the magnet approached, the rotation became more rapid, and •when it was about half an inch above the mercury, a great depression of it was observed above the wire, and a vortex, which reached almost to the surface of the wire.
291 페이지 - HAL. — Of this species, I have seen but these two, and I believe the young ones migrate as soon as they can provide for themselves ; for this solitary bird requires a large space to move and feed in, and does not allow its offspring to partake its reign, or to live near it.