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acid action Alhazen amount appears Atacamite atmosphere carbon carbonado carboniferous cause cent chemical chlorophyll coal colouring matters considerable contains copper crater crust density deposits described determination Devonian diamond direction disc dols earth effect electric Eocene ethereal waves evidence existence experiments fact feet force fossils fucoxanthine fuel Geological Gilpin County glacial glass gold Gramme machine guano gun-cotton haematite harbour heat important inches iron light Linn6 London lunar Machairodus machine magnetic Mars means miles mineral mines moon moon's surface motion nature observations obtained old red sandstone ordinary paper peat phenomena physical plants plate Plato portion present probably produced Prof Professor pyrites quantity railway recent remarkable rendered rocks rotation scientific sewage Silurian solar South specimens spectrum stone substances supposed temperature theory tion tons Trilobites tube vibrations weight whilst whiq xanthophyll
Seite 514 - P. Report on the Filtration of River Waters for the supply of Cities, as practised in Europe, made to the Board of Water Commissioners of the city of St. Louis.
Seite 421 - Nevertheless, it is necessary to remember that there is a wider Teleology which is not touched by the doctrine of Evolution, but is actually based upon the fundamental proposition of Evolution. That proposition is, that the whole world, living and not living, is the result of the mutual interaction according to definite laws of the forces possessed by the molecules, of which the primitive nebulosity of the universe was composed.
Seite 533 - Sanitary Engineering: a Guide to the Construction of Works of Sewerage and House Drainage, with Tables for facilitating the calculations of the Engineer. By BALDWIN LATHAM, CE, M. Inst. CE, FGS, FMS, Past-President of the Society of Engineers.
Seite 254 - GEOLOGICAL STORIES: A Series of Autobiographies in Chronological Order. By JE TAYLOR, FLS, FGS Numerous Illustrations. Fourth Edition. Crown 8vo, cloth, 4^.
Seite 248 - There is every reason to consider it established, that an earthquake is simply " the transit of a wave or waves of elastic compression in any direction, from vertically upwards to horizontally in any azimuth, through the crust and surface of the earth, from any centre of impulse or from more than one, and which may be attended with sound and tidal waves, dependent upon the impulse and upon circumstances of position as to sea and land.
Seite 348 - New knowledge, when to any purpose, must come by contemplation of old knowledge, in every matter which concerns thought ; mechanical contrivance sometimes, not very often, escapes this rule. All the men who are now called discoverers, in every matter ruled by thought, have been men versed in the minds of their predecessors, and learned in what had been before them. There is not one exception.
Seite 187 - I observed, for the first time, a small bright spot, nearly or quite round, projecting out of the lower side of the polar spot. In the early part of the evening...
Seite 388 - When, in an experiment, all known causes being allowed for, there remain certain unexplained effects (excessively slight it may be), these must be carefully investigated, and every conceivable variation of arrangement of apparatus, etc., tried ; until, if possible, we manage so to exaggerate the residual phenomenon as to be able to detect its cause. It is here, perhaps, that in the present state of science we may most reasonably look for extensions of our knowledge ; at all events we are warranted...
Seite 421 - If one plant or animal differs from another, or the parent from the child, it is because in the building-up process the determinations of molecular motion were different in the two cases ; and the true and fundamental ground of the difference must be sought for in the cause of the determination of molecular motion.
Seite 34 - Vesuvius ; and, in some of the principal ones, decisive marks of volcanic stratification, arising from successive deposits of ejected matter, may be clearly traced With powerful telescopes. What is, moreover, extremely singular in the geology of the moon is, that although nothing having the character of seas can be traced (for the...