Proceedings of the American Academy of Arts and Sciences, Volume 24

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Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell.

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Page 192 - Place's work) is, with few and slight exceptions, just what we could have wished to see — an exact and careful translation into very good English — exceedingly well printed, and accompanied with notes appended to each page, which leave no step in the text of moment unsupplied, and hardly any material difficulty either of conception or reasoning unelucidated.
Page 194 - Ingersoll showed his comrade a solution which his father had prepared of a problem that the boys had been at work upon. Some error, real or conceived, was pointed out in the work, which was reported by Ingersoll to his father. ' Bring me that boy who corrects my mathematics...
Page 483 - If any book shall be lost or injured, the person to whom it stands charged shall replace it by a new volume or set, if it belongs to a set...
Page 164 - Li Be B C N O F Na Mg Al Si P S Cl K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge...
Page 295 - G., xv. 1864. ate made from 3 grs. of sodium dissolved in 100 to 150 cc of absolute alcohol. The action began at once, as shown by the appearance of a dark red color and a considerable evolution of heat, so that the flask became too hot to hold in the hand with comfort ; in this respect it differed from that with the tribromdinitrobenzol, as, although in that case the red color appeared at once, no perceptible rise of temperature was observed in any part of the reaction. To make certain that the...
Page 463 - Ueber den Satz vom mittleren Ergal und seine Anwendung auf die Molecularbewegungen der Gase " J (1874). The first problem of molecular science is to derive from the observed properties of bodies as accurate a notion as possible of their molecular constitution. The knowledge we may gain of their molecular constitution may then be utilized in the search for...
Page 191 - ... venture to say that the number of those in this island who can read that work with any tolerable facility is small indeed. If we reckon two or three in London and the military schools in its vicinity, the same number at each of the two English Universities, and perhaps four in Scotland, we shall not hardly exceed a dozen : and yet we are fully persuaded that our reckoning is beyond the truth.
Page 462 - Ueber einen auf die Warme anwendbaren Satz," |] where he shows that in any case of stationary motion the mean vis viva of the system is equal to its virial. In the mean time, Maxwell and Boltzmann had entered the field. Maxwell's first paper, " On the Motions and Collisions of perfectly elastic Spheres, " T was characterized by a new manner of proposing the problems of molecular science.
Page 480 - THE PRESIDENT. 1. It shall be the duty of the President, and, in his absence, of the senior Vice-President...
Page 381 - Laplace makes a similar reflection on this new triumph of theory. " It is wonderful that an astronomer, without going out of his observatory, should be able to determine exactly the size and figure of the earth, and its distance from the sun and moon, simply by comparing his observations with analysis, the knowledge of which formerly demanded long and laborious voyages in both hemispheres. The accordance of the results obtained by the two methods is one of the most striking proofs of universal gravitation.

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