The Canadian Journal of Industry, Science and Art, Том 2,Випуск 9;Том 9Canadian Institute., 1864 |
Інші видання - Показати все
Загальні терміни та фрази
ancient animal Apes appears atmosphere auroral light average Barometer blood brachycephalic British Cæsar Calm Canada Canadian Canadian Institute carbonic acid Celt Celtic centre character CHERRIMAN coal Coleoptera Coll compared crania derived Dighton Rock dolichocephalic duration dwts English existence experiments fact feet fibrine Finnic Fissirostral French Gallienus gases Geology Gorilla gun-cotton gunpowder head head-forms heat inches inscription Islands Journal kilogrammes Labrador Peninsula Lake latter least less light maximum Mean Abnormal Variations Mean velocity METEOROLOGICAL metres miles per hour month Monthly range nature observed Ophthalmoscope origin oxygen plants present pressure probably Prof quantity Quebec race rain regard to sign remarkable Resultant direction rocks Roman Scansorial Silurian skull snow Society Solferino species specimens surface syndactyle temperature thallium tion Toronto traces tribes tube Univ Veddahs vessel whilst wind windy
Популярні уривки
Сторінка 288 - Cloud-like we saw the shore Stretching to leeward; There for my lady's bower Built I the lofty tower, Which, to this very hour, Stands looking seaward.
Сторінка 150 - But if Man be separated by no greater structural barrier from the brutes than they are from one another — then it seems to follow that if any process of physical causation can be discovered by which the genera and families of ordinary animals have been produced, that process of causation is amply sufficient to account for the origin of Man.
Сторінка 150 - II amply sufficient to account for the origin of Man. In other words, if it could be shown that the Marmosets, for example, have arisen by gradual modification of the ordinary Platyrhini, or that both Marmosets and Platyrhini are modified ramifications of a primitive stock — then, there would be no rational ground for...
Сторінка 72 - Gift of the State of New York. 13034, 0. 5. Sixth annual report of the Regents of the University of the State of New York on the condition of the State Cabinet of Natural History, &o.
Сторінка 35 - A sudden outburst of light, far exceeding the brightness of the sun's surface, was seen to take place, and sweep like a drifting cloud over a portion of the solar face. This was attended with magnetic disturbances of unusual intensity, and with exhibitions of aurora of extraordinary brilliancy. The identical instant at which the effusion of light was observed was recorded by an abrupt and strongly marked deflection in the self-registering instruments at Kew.
Сторінка 158 - Our reverence for the nobility of manhood will not be lessened by the knowledge, that Man is, in substance and in structure, one with the brutes; for, he alone possesses the marvellous endowment of intelligible and rational speech, whereby, in the secular period of his existence, he has slowly accumulated and organized the experience which is almost wholly lost with the cessation of every individual life in other animals...
Сторінка 39 - ... the refuse of gunpowder itself. There is yet another peculiar feature of gun-cotton. It can be exploded in any quantity instantaneously. This was once considered its great fault; but it was only a fault when we were ignorant of the means to make that velocity anything we pleased.
Сторінка 32 - I have hitherto spoken of coal only as a source of mechanical power, but it is also extensively used for the kindred purpose of relaxing those cohesive forces which resist our efforts to give new forms and conditions to solid substances. In these applications, which are generally of a metallurgical nature, the same wasteful expenditure of fuel is everywhere observable. In an ordinary furnace employed to fuse or soften any solid substance, it is the excess of the heat of combustion over that of the...
Сторінка 41 - ... The bobbin is a hollow tube of paper or wood, the object of the wooden rod is to secure in all cases the necessary length of chamber in the gun required for the most effective explosion. The gun-cotton circular web is inclosed in close tubes of India-rubber cloth, to form a match line, in which form it is most convenient, and travels with speed and certainty. In large quantities, for the explosion of mines, it is used in the form of rope, and in this form it is conveniently coiled in casks and...
Сторінка 40 - The slow combustion is made use of when it is required to produce manageable power, as in the case of gunnery. It is plain, therefore, that, if we can explode a large mass instantaneously, we get out of the gases so exploded the greatest possible power, because all the gas is generated before motion commences, and this is the condition of maximum effect.