Science, Том 3John Michels (Journalist) American Association for the Advancement of Science, 1884 Since Jan. 1901 the official proceedings and most of the papers of the American Association for the Advancement of Science have been included in Science. |
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academy American Ammonoidea animals appear astronomer Belemnoidea cañon carboniferous Cascade Range cause centre character collection color contains described Devonian direction effect electrical electromotive force evidence exhibited experiments fact feet Fort Selkirk fossil galvanometer geological give given heat Hessian fly hundred illustrated important inches Indians interest investigation Island known Krakatoa laboratory Lake larvae latter less light magnetic means ment meteorological method micrococci miles motion Mount Shasta mountain museum natural Nautiloidea nearly nitrogen observations observatory obtained olivine organs origin Ottawa field-naturalists paleozoic paper plants plates position present probably Prof Professor protoconch published pygidium recently regard region River rocks scientific seen shell side society soil species specimens station storm surface survey temperature theory thousand tion trilobite valley volcanic wind zoea
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Сторінка 424 - ON A NEW METHOD OF OBTAINING THE DIFFERENTIALS OF FUNCTIONS, with especial reference to the Newtonian Conception of Rates or Velocities.
Сторінка 461 - To discover a method by which the vaccine contagium may be cultivated apart from the animal body, in some medium or media not otherwise zymotic, the method to be such that the contagium may by means of it be multiplied to an indefinite extent in successive generations, and that the product after any number of such generations shall (so far as can within the time be tested) prove itself of identical potency with standard vaccine lymph.
Сторінка 474 - I have recently demonstrated f regarding the present condition of the earth's interior — that it is not, as commonly supposed, all liquid within a thin solid crust of from 30 to 100 miles thick, but that it is on the whole more rigid certainly than a continuous solid globe of glass of the same diameter, and probably than one of steel. * Proceedings of the Royal Society of London 1861, "On Crystallization and Liquefaction as influenced by Stresses tending to Change of Form in Crystals." f In a paper...
Сторінка 14 - ... as we suppose allied instincts to have branched off at different stages of descent from a common ancestor, and therefore to have retained, more or less unaltered, the instincts of the several lineal ancestral forms of any one species ; bearing all this in mind, together with the certainty that instincts are as important to an animal as their generally correlated structures, and that in the struggle for life under changing conditions, slight modifications of instinct could hardly fail occasionally...
Сторінка 97 - I estimated the height of the column of smoke at double the height of the portion seen of the mountain. The top of the column was therefore nearly 40,000 feet above the sea. At that elevation it encountered a powerful wind blowing from the east, and was rapidly borne for twenty miles towards the Pacific, seeming to spread very slightly and remaining of inky blackness, presenting the appearance of a gigantic inverted i , drawn upon an otherwise perfectly clear sky.
Сторінка 130 - It seems to me that we want a new word to express the fact that all physical science, properly so called, is compelled by its very nature to take no account of the being of God : as soon as it does this it trenches upon theology, and ceases to be physical science.
Сторінка 93 - It seems easy to conceive, how, by this successive condensation from above, the spout appears to drop or descend from the cloud, though the materials of which it is composed are all the while ascending. The condensation of the moisture, contained in so great a quantity of warm air as may be supposed to rise in a short time in this prodigiously rapid whirl, is, perhaps, sufficient to form a great extent of cloud, though the spout should be over land, as those at Hatfield ; and, if the land happens...
Сторінка 240 - ... months subsequent to the eruption, being due to volcanic dust in suspension in the air, offered a farther incentive to investigate the whole history of the eruption. In consequence the Council in January last nominated a Committee to collect the various accounts of the volcanic eruption at Krakatoa and attendant phenomena, in such form as shall best provide for their preservation and promote their usefulness, and a sum of 1001.
Сторінка 14 - Finally, it may not be a logical deduction, but to my imagination it is far more satisfactory to look at such instincts as the young cuckoo ejecting its foster-brothers, ants making slaves, the larvae of...
Сторінка 8 - British association decided that a unit of resistance based simply on the earth qundrant, or ten million metres, as the unit of length, and the second as the unit of time, would be of such a magnitude as to best satisfy the requirements of -the case.