Proceedings of the American Academy of Arts and Sciences, Volumen2Metcalf and Company, 1852 Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell. |
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Página 1
... Mean Solar Time . Dec. N. Comet's A. R. Dec. N. Star of Comparison . A. R. 1848. d . h . m . s . h . mn . S O h . m . 8 . O No. of Comp . 11 B. Z. 456 . 12 2 66 12 B. Z. 280 . Feb. 29 12 43 55 10 57 23.1 18 42 48 10 56 16.84 18 43 11.5 ...
... Mean Solar Time . Dec. N. Comet's A. R. Dec. N. Star of Comparison . A. R. 1848. d . h . m . s . h . mn . S O h . m . 8 . O No. of Comp . 11 B. Z. 456 . 12 2 66 12 B. Z. 280 . Feb. 29 12 43 55 10 57 23.1 18 42 48 10 56 16.84 18 43 11.5 ...
Página 100
... means of the agitations of its surface , or by violent and tumultuous disturbances . The tides and currents of the sea have been treated in a general way only . This memoir announces the discovery of a permanent , systematic , and ...
... means of the agitations of its surface , or by violent and tumultuous disturbances . The tides and currents of the sea have been treated in a general way only . This memoir announces the discovery of a permanent , systematic , and ...
Página 101
... means of which the geologist will be enabled to reason back from the deposits of earlier periods to the na- ture of the currents by which they were made , as the character of the present formations on the borders of the sea and in its ...
... means of which the geologist will be enabled to reason back from the deposits of earlier periods to the na- ture of the currents by which they were made , as the character of the present formations on the borders of the sea and in its ...
Página 104
... means and experiments , and with apparent success . On this point Espy differs from him , in referring the dynamic effects of spouts chiefly , if not wholly , to a vacuum in the cloud , which he seems to believe may exist independently ...
... means and experiments , and with apparent success . On this point Espy differs from him , in referring the dynamic effects of spouts chiefly , if not wholly , to a vacuum in the cloud , which he seems to believe may exist independently ...
Página 111
... mean low water , to serve as a future indication in respect to the elevation or sub- sidence of the land . It was thought that the proper observa- tions might best be made , and the marks fixed , by the United States Coast Survey . On ...
... mean low water , to serve as a future indication in respect to the elevation or sub- sidence of the land . It was thought that the proper observa- tions might best be made , and the marks fixed , by the United States Coast Survey . On ...
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Página 180 - A mixture of hydrogen (an inflammable gas) with oxygen (an ingredient of atmospheric air), in the proportion of two volumes of the former to one of the latter, is eminently explosive.
Página 232 - Philadelphia, 1848-49. From the Academy. Third Annual Report of the Regents of the University, of the Condition of the State Cabinet of Natural History, and the Historical and Antiquarian Collections annexed thereto. (State Document.) 1850. 8vo. From the Regents of the New York University. Memoires de la Socie'te de Physique et d'Histoire Naturelle de Geneve. Tom. XII., 1
Página 269 - It was voted that a committee of five be appointed by the Chair to promote and co-operate in the development of printed catalog cards In relation with international arrangements.
Página 153 - A Eulogy on the Life and Character of John Quincy Adams, delivered at the Request of the Legislature of Massachusetts, in Faneuil Hall, April 15, 1848.
Página 277 - Read before the Association of Medical Superintendents of American Institutions for the Insane, at Boston, June, 1850.
Página 229 - Reports from the Secretary of the Treasury, of scientific investigations in relation to sugar and hydrometers, made, under the superintendence of Prof.
Página 160 - Mathematica ; or a Collection of Treatises on the Mathematics and Subjects connected with them, from ancient inedited MSS. by JO HALLIWELL, 8vo. SECOND EDITION, cloth, 3...
Página 135 - August, and from them he infers ' that the changes in the elevation of the waters are entirely too variable to be traced to any regular permanent cause, and that consequently there is no perceptible tide at Green Bay which is the result of observation. And such, it appears to me, is the result of calculation, when the laws that regulate solar and lunar attraction are taken into view.
Página 135 - The phenomena occurred about noon. The day was calm, but cloudy. The water retired suddenly, leaving the bed of the river bare, except for a distance of thirty rods, and remained so for nearly an hour.
Página 137 - Beche, a sudden impulse given to the particles of water, either by suddenly increased or diminished pressure, would cause a perpendicular rise or fall, in the manner of a wave, beyond the height or depth strictly due to the mere weight itself. The difference in the specific gravity of the water of the lakes * American Journal of Science, Vol.