The American Journal of ScienceJ.D. & E.S. Dana, 1895 |
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Стр. 22
... theory of the transforma- tions which take place in a substance under the influence of heat , it is necessary to define the nature of the periodical motions , as well as in the theory of light . We can assume for instance , that this ...
... theory of the transforma- tions which take place in a substance under the influence of heat , it is necessary to define the nature of the periodical motions , as well as in the theory of light . We can assume for instance , that this ...
Стр. 83
... theory of distribu- tion which had been adopted . However , the greater part of the deviation of the observed values of the force of gravity at the several points given in the table above , from the values as distributed over Clark's ...
... theory of distribu- tion which had been adopted . However , the greater part of the deviation of the observed values of the force of gravity at the several points given in the table above , from the values as distributed over Clark's ...
Стр. 156
... theory that the glaciation of our own region had its source in Greenland is without support . " G. F. WRIGHT , presented a paper on Observations on the Gla- cial Phenomena of Newfoundland , Labrador and Southern Greenland which is given ...
... theory that the glaciation of our own region had its source in Greenland is without support . " G. F. WRIGHT , presented a paper on Observations on the Gla- cial Phenomena of Newfoundland , Labrador and Southern Greenland which is given ...
Стр. 159
... theory was advanced to account for these features that the crys- talline rocks moved against the sediments , chiefly along the shear- zones , and deformed them most in the southwestern Appalachians . F. B. ADAMS presented an excellent ...
... theory was advanced to account for these features that the crys- talline rocks moved against the sediments , chiefly along the shear- zones , and deformed them most in the southwestern Appalachians . F. B. ADAMS presented an excellent ...
Стр. 163
... theory advocated is essentially the Lamarckian , Evolution by variation , " not " Evolution by Natural selection . " The illustrations in the work have been increased in number by more than 400 , making the total over 1575 , and to them ...
... theory advocated is essentially the Lamarckian , Evolution by variation , " not " Evolution by Natural selection . " The illustrations in the work have been increased in number by more than 400 , making the total over 1575 , and to them ...
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Стр. 236 - As a unit of resistance, the international ohm, which is based upon the ohm equal to 10" units of resistance of the CGS system of electromagnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grams in mass, of a constant cross-sectional area and of the length of 106.3 centimetres.
Стр. 508 - Index Kewensis: an enumeration of the genera and species of flowering plants from the time of Linnaeus to the year 1885 inclusive, together with their authors' names, the works in which they were first published, their native countries, and their synonyms.
Стр. 292 - It will be remembered that, from the velocity of sound in a gas, the ratio of specific heat at constant pressure to that at constant volume can be deduced by means of the equation when n is the frequency, A.
Стр. 237 - As a unit of quantity, the international coulomb, which is the quantity of electricity transferred by a current of one international ampere in one second. As a unit of capacity, the international farad, which is the capacity of a condenser charged to a potential of one international volt by one international coulomb of electricity.
Стр. 237 - ... As a unit of electromotive force, the international volt, which is the electromotive force that, steadily applied to a conductor whose resistance is one international ohm, will produce a current of one international ampere, and which is represented sufficiently well for practical use by \\\% of the electromotive force between the poles or electrodes of the voltaic cell known as Clark's cell, at a temperature of 15° C., and prepared in the manner described in the accompanying specification...
Стр. 318 - The crystals should be dissolved with the aid of gentle heat, but the temperature to which the solution is raised must not exceed 30° C.
Стр. 237 - The unit of induction shall be the Henry, which is the induction in a circuit when the electro-motive force induced in this circuit is one international volt while the inducing current varies at the rate of one Ampere per second.
Стр. 277 - We are in the case of Tarpeia, who opened the gates of the Roman citadel to the Sabines, and was crushed under the weight of the reward bestowed upon her.
Стр. 317 - The result will be the time-average of the current, if during the interval the current has varied. In determining by this method the constant of an instrument the current should be kept as nearly constant as possible, and the readings of the instrument observed at frequent intervals of time. These observations give a curve from which the reading corresponding to the mean current (time-average of the current) can be found. The current, as calculated by the voltameter, corresponds to this reading.
Стр. 316 - ... through a solution of nitrate of silver in water. The silver voltameter measures the total electrical quantity which has passed during the time of the experiment, and by noting this time the time average of the current, or, if the current has been kept constant, the current itself, can be deduced. In employing the silver voltameter to measure currents of about one ampere...