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 33
... short periods during heavy gales , and therefore cannot cause much change in the monthly means , or the means of the different seasons . M. Dausy concluded from his researches that the mean level of the sea was not sensibly altered at ...
... short periods during heavy gales , and therefore cannot cause much change in the monthly means , or the means of the different seasons . M. Dausy concluded from his researches that the mean level of the sea was not sensibly altered at ...
Página 38
... short sketch of the process , and enumerate the syste- matic errors which must be guarded against , and their sources . First , it is assumed that an approximate catalogue of time - stars is at hand ; the first object is to obtain a ...
... short sketch of the process , and enumerate the syste- matic errors which must be guarded against , and their sources . First , it is assumed that an approximate catalogue of time - stars is at hand ; the first object is to obtain a ...
Página 45
... and precision are entirely dependent on the augmented strength of the gun . The weakness of the gun is the only thing that imposes a limit to the range short of the absolute strength of the OF ARTS AND SCIENCES : NOVEMBER 14 , 1865 . 45.
... and precision are entirely dependent on the augmented strength of the gun . The weakness of the gun is the only thing that imposes a limit to the range short of the absolute strength of the OF ARTS AND SCIENCES : NOVEMBER 14 , 1865 . 45.
Página 46
American Academy of Arts and Sciences. to the range short of the absolute strength of the explosive material used . It is ... short hollow cylinders , welded together endwise ; each ring was made of bars wound upon 46 PROCEEDINGS OF THE ...
American Academy of Arts and Sciences. to the range short of the absolute strength of the explosive material used . It is ... short hollow cylinders , welded together endwise ; each ring was made of bars wound upon 46 PROCEEDINGS OF THE ...
Página 123
... short time . After the battle of Waterloo and the restoration of peace he completed his studies under Gauss , and was appointed assistant to Lindenau , in the Observatory of Lemburg , in 1816. He received the title of Professor in 1818 ...
... short time . After the battle of Waterloo and the restoration of peace he completed his studies under Gauss , and was appointed assistant to Lindenau , in the Observatory of Lemburg , in 1816. He received the title of Professor in 1818 ...
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Página 130 - The Vegetable Kingdom, or the Structure, Classification, and Uses of Plants, illustrated upon the Natural System.
Página 496 - 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 16 - 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 26 - 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 28 - 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 507 - ANNUAIRE DE CHIMIE, comprenant les applications de cette science à la médecine et à la pharmacie, ou Répertoire des découvertes et des nouveaux travaux en chimie faits dans les diverses parties de l'Europe ; par MM. E.
Página 311 - THE GEOLOGY OF PENNSYLVANIA: A Government Survey ; with a General View of the Geology of the United States, Essays on the Coal- Formation and its Fossils, and a Description of the Coal-Fields of North America and Great Britain.
Página 13 - 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 14 - 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 47 - ... 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.