Proceedings of the American Academy of Arts and Sciences, Volumen7Metcalf and Company, 1868 Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell. |
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Página 37
... German , English , Russian , and French astronomers have followed this plan within the present century . Admirable fundamental catalogues have appeared from the observa- tories of OF ARTS AND SCIENCES : NOVEMBER 8 , 1865 . 37.
... German , English , Russian , and French astronomers have followed this plan within the present century . Admirable fundamental catalogues have appeared from the observa- tories of OF ARTS AND SCIENCES : NOVEMBER 8 , 1865 . 37.
Página 45
... present and pro- spective , cannot be over - estimated . But the point which we have to consider is , that this increased range and precision are entirely dependent on the augmented strength of the gun . The weakness of the gun is the ...
... present and pro- spective , cannot be over - estimated . But the point which we have to consider is , that this increased range and precision are entirely dependent on the augmented strength of the gun . The weakness of the gun is the ...
Página 46
... present day embody new prin- ciples of strength . They are all built - up guns . With them are associ- ated the names of Armstrong , Blakely , Whitworth , Parrott , and others . Whatever may be the relative merits of these several ...
... present day embody new prin- ciples of strength . They are all built - up guns . With them are associ- ated the names of Armstrong , Blakely , Whitworth , Parrott , and others . Whatever may be the relative merits of these several ...
Página 63
... present purpose to state that it is provided with nine flint - glass prisms * of 45 ° refracting angle , which bend the rays of light corresponding to the D line through an angle of 267 ° 37 ' 50 " , and that corresponding to the H1 ...
... present purpose to state that it is provided with nine flint - glass prisms * of 45 ° refracting angle , which bend the rays of light corresponding to the D line through an angle of 267 ° 37 ' 50 " , and that corresponding to the H1 ...
Página 65
... present a very wide field for investigation , but one which can only be cultivated under peculiar atmospheric conditions . This paper is only intended to open the subject . I hope to be able to continue the study on every favorable ...
... present a very wide field for investigation , but one which can only be cultivated under peculiar atmospheric conditions . This paper is only intended to open the subject . I hope to be able to continue the study on every favorable ...
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Términos y frases comunes
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Página 17 - Statistics of the Foreign and Domestic Commerce of the United States. .... Communicated by the Secretary of the Treasury, in Answer to a Resolution of the Senate of the United States, March 12, 1863.
Página 121 - The Vegetable Kingdom; or, the Structure, Classification, and Uses of Plants, Illustrated upon the Natural System.
Página 487 - Two reports have recently been issued on rates of deck watches and of box and pocket chronometers on trial for purchase by the Board of Admiralty at the Royal Observatory, Greenwich, in the latter half of last year.
Página 7 - Report of the Astronomer Royal to the Board of Visitors of the Royal Observatory, Greenwich, read at the Annual Visitation of the Royal Observatory, 1860, June 2; and Address of the Astronomer Royal to the Board of Visitors, 1860, May 12.
Página 19 - An address delivered at the anniversary meeting of the Geological Society of London, on the 19th of February, 1841 ; and the announcement of the award of the Wollaston medal and donation fund for the same year.
Página 475 - Condition and Doings of the Boston Society of Natural History, as exhibited by the Annual Reports of the Custodian, Treasurer, Librarian, and Curators. May, 1865.
Página 443 - The relationship of punalua is rather amphibious. It arose from the fact that two or more brothers with their wives, or two or more sisters with their husbands, were inclined to possess each other in common ; but the modern use of the word is that of dear friend or intimate companion."1 The Rev.
Página 7 - Report to the Legislature of Massachusetts relating to the Registry and Return of Births, Marriages and Deaths in the Commonwealth for the year ending December 31, 1880.
Página 7 - Annual Report of the Trustees of the Museum of Comparative Zoology at Harvard College, in Cambridge, together with the Report of the Director, 1864.
Página 38 - ... cylinders, welded together endwise. Each ring was made of bars wound upon an arbor spirally, like winding a ribbon upon a block, and, being welded and shaped in dies, were joined endwise, when in the furnace and at a welding heat, and afterwards pressed together in a mould, by a hydrostatic press of 1,000 tons force.