Philosophical Magazine

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Taylor & Francis, 1864
 

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Stran 81 - Matter,' originally published in 1863, Graham conceived that the various kinds of matter, now recognised as different elementary substances, may possess one and the same ultimate or atomic molecule existing in different conditions of movement.
Stran 344 - Beyond the second ridge a talus slopes gradually down northwards to the general level of the lunar surface, the whole presenting an appearance reminding the observer of the concentric moraines of the Rhone glacier. These ridges are visible for the whole period during which that portion of the Moon's surface is illuminated ; but it is only about the third day after the first quarter, and at the corresponding phase of the waning Moon, when the Sun's rays, falling nearly horizontally, throw the details...
Stran 31 - When two or more substances are mixed without either shrinkage or expansion (that is, when the volume of the mixture is equal to the sum of the volumes of the components), the density of the mixture can easily be expressed in terms of the quantities and densities of the components.
Stran 130 - The sole cause of the phenomena of the glacial epoch was a higher temperature of the ocean than that which obtains at present.
Stran 164 - ... in it are arranged in groups radiating from one or more points on the external surface, in such a manner as to indicate that they were developed after the fragments had acquired their present spheroidal shape.
Stran 323 - The pectization of liquid silicic acid and many other liquid colloids is effected by contact with minute quantities of salts in a way which is not understood. On the other hand, the gelatinous acid may again be liquefied and have its energy restored by contact with a very moderate amount of alkali. The latter change is gradual, 1 part of caustic soda, dissolved in 10,000 water, liquefying 200 parts of silicic acid (estimated dry) in 60 minutes at 100° C.
Stran 345 - ... internal receptacle for the ocean, from the depths of which even the burning Sun of the long lunar day would be totally unable to dislodge more than traces of its vapour.
Stran 182 - ... in proportion to the weight of water which would be raised in that tube by capillary action...
Stran 49 - Physiology*,' he had not pursued the subject further. It is unquestionable that heat is produced by such friction, but it must be understood that the mechanical force expended in the friction is a part of the force of affinity which causes the venous blood to unite with oxygen ; so that the whole heat of the system must still be referred to the chemical changes. But if the animal were engaged in turning a piece of machinery, or in ascending a mountain, I apprehend that in proportion to the muscular...
Stran 38 - Does Prof. Tyndall know that Mayer's paper has no claims to novelty or correctness at all, saving this, that by a lucky chance he got an approximation to a true result from an utterly false analogy; and that even on this point he had been anticipated by Seguin, who, three years before the appearance of Mayer's paper, had obtained and published the same result from the same hypothesis.

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