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 27
... Species of Humble Bees , and on the Leaf - Cutting Bee . By F. W. Putnam . The Humble Bees of New England and their Parasites : with Notices of a New Species of Anthophorabia and a New Genus of Proctotrupidae : by A. S. Packard , Jr ...
... Species of Humble Bees , and on the Leaf - Cutting Bee . By F. W. Putnam . The Humble Bees of New England and their Parasites : with Notices of a New Species of Anthophorabia and a New Genus of Proctotrupidae : by A. S. Packard , Jr ...
Página 53
... species of Nephila , resembling most of its congeners in the general form of the body , and , like N. clavipes and N. fasciculata , possessing peculiar col- lections of stiff hairs upon the legs , but differing from these two species in ...
... species of Nephila , resembling most of its congeners in the general form of the body , and , like N. clavipes and N. fasciculata , possessing peculiar col- lections of stiff hairs upon the legs , but differing from these two species in ...
Página 54
... species of geometrical spiders , the ' concentric circles are elastic and studded with numerous viscid globules , while the radii and other parts of the framework are composed of dry and inelastic silk ; but with this species the ...
... species of geometrical spiders , the ' concentric circles are elastic and studded with numerous viscid globules , while the radii and other parts of the framework are composed of dry and inelastic silk ; but with this species the ...
Página 128
... botanical investigation and authorship ; although of late years restricting his proper studies very much to the Ferns . His most comprehensive work upon this great order , the Species Filicum , was 123 PROCEEDINGS OF THE AMERICAN ACADEMY.
... botanical investigation and authorship ; although of late years restricting his proper studies very much to the Ferns . His most comprehensive work upon this great order , the Species Filicum , was 123 PROCEEDINGS OF THE AMERICAN ACADEMY.
Página 129
... species as there were of plants known in the time of Linnæus . This is not so extraordinary when we consider that his term of authorship covers fifty - five years , no part of which was unpro- ductive , and that his opportunities were ...
... species as there were of plants known in the time of Linnæus . This is not so extraordinary when we consider that his term of authorship covers fifty - five years , no part of which was unpro- ductive , and that his opportunities were ...
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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.