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 43
... common intersections . 1 of these double contacts may be replaced by 1 envelopment ; or all 4 by 2 envelopments if ( U , V ) be cones . If U have p double contacts and q envelope - contacts with surfaces V + μY , so has V with surfaces ...
... common intersections . 1 of these double contacts may be replaced by 1 envelopment ; or all 4 by 2 envelopments if ( U , V ) be cones . If U have p double contacts and q envelope - contacts with surfaces V + μY , so has V with surfaces ...
Página 46
... common guns , and rendered their respective subordinate improvements possible . These principles are two , and their introduction at different times into the manufacture of cannon constitutes two successive steps , and the only steps ...
... common guns , and rendered their respective subordinate improvements possible . These principles are two , and their introduction at different times into the manufacture of cannon constitutes two successive steps , and the only steps ...
Página 47
... common United States bronze pattern , and eleven were thirty - two- pounders , of about eighty inches ' length of bore and nineteen hundred pounds ' weight . " - The soundness and value of this principle of construction were fully ...
... common United States bronze pattern , and eleven were thirty - two- pounders , of about eighty inches ' length of bore and nineteen hundred pounds ' weight . " - The soundness and value of this principle of construction were fully ...
Página 49
... common gun ) is subject to any strain at all . It will be perceived that if this prin- ciple could be rigorously applied , a cannon could be made so perfect that , when subjected to a bursting pressure , every fibre , from the inter ...
... common gun ) is subject to any strain at all . It will be perceived that if this prin- ciple could be rigorously applied , a cannon could be made so perfect that , when subjected to a bursting pressure , every fibre , from the inter ...
Página 52
... common upon Long Island , which lies just west from Folly Island , I knew it was the same , and told him what I had done , adding that I was sure something would come of it in time . By substituting a cylinder worked by a handle for ...
... common upon Long Island , which lies just west from Folly Island , I knew it was the same , and told him what I had done , adding that I was sure something would come of it in time . By substituting a cylinder worked by a handle for ...
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Términos y frases comunes
4to pamph 66 female 66 granddaughter 8vo pamph 8vo vol Acad Academy acutis antheræ ANTIRRHINUM apice basi Beech Benth Bolander Boston Boston Athenæum Brack bracteis bracts breadth brevibus brevioribus breviter brothers and sisters calycis Calyx capsula caule cells chloride chlorine Class CORDYLANTHUS corolla dentibus diameter Expl feet fere filamentis floribus flowers folia foliis foliolis Freyc Gaud genus glabra grandson Gray Hawaiian Hawaiian Islands Hook inches long integerrimis interpolated involucri Islands Kauai lanceolatis leaves linearibus lines long Linn Linnæa lobis loculis longioribus male Maui Mountains not-P Nutt Oahu Mann oblongis obtusis ovalibus ovario ovatis oxide paullo pedicellis pedicels pedunculis petalis petiolatis petiole petiolum PHYLLOSTEGIA plant predicate premise President Prodr Professor proposition quadrics relation Remy Resident Fellow sæpius SANDWICENSIS segmentis sepalis sepals Society species specimens squamis subtus term tion tubo Turanian Yosemite Valley
Pasajes populares
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.