Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 65American Philosophical Society, 1926 |
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absorption coefficient Algonkian alpha form Amer American Philosophical Society appears atomic number 143 atomic volcanism basalt Chem chlorine coast containing copper coral cosmic rays culture Dewar jars discovery eclipse electron elements energy erosion ether ether waves evaporated evidence forecasts frequency garigue gases germanic oxide germanium dioxide glacial stage grandiflora growth heat Herbarium Hittite holm oak hydrochloric acid hydrogen atoms Illinoian Illinoian drift indicate insoluble oxide ionization potential Iowan drift Journ Kanish Kansan known Labrador Lamarckiana macchia mass absorption coefficient material melting point mercury metal meteorites method Millikan mixture molecules nullipores observed original oxide Periodic Table plant polygon potassium precipitated present probably problem radiation reefs relation seems selenious acid selenium shown silica solar soluble solution species specimens spectrum sulphide sulphur dioxide surface tellurates temperature tion ultimate atom UNIV uric acid vegetative volatile waves weather X-rays
Популярні уривки
Сторінка xv - That one society be formed of virtuosi or ingenious men, residing in the several colonies, to be called The American Philosophical Society, who are to maintain a constant correspondence.
Сторінка 75 - I have brought to a close the portion of the work which seemed to be specially mine — the demonstration of the practicability of mechanical flight — and for the next stage, which is the commercial and practical development of the iden, it is probable that the world may look to others.
Сторінка xx - Therefore, Be it resolved, That a committee of five be appointed by the President...
Сторінка 304 - A race is a great division of mankind, the members of which, though individually varying, are characterized as a group by a certain combination of morphological and metrical features, principally non-adaptive, which have been derived from their common descent.
Сторінка 75 - WAS THE FIRST HEAVIER-THAN-AIR CRAFT IN THE HISTORY OF THE WORLD CAPABLE OF SUSTAINED FREE FLIGHT UNDER ITS OWN POWER, CARRYING A MAN.
Сторінка 74 - Langley announced that it was possible to construct machines which would give such a velocity to inclined surfaces that bodies indefinitely heavier than the air could be sustained upon it and moved through it with great velocity.
Сторінка 374 - Societies is able to offer a limited number of small grants to individual scholars to assist them in carrying on definite projects of research in the humanistic sciences: philosophy; philology, literature, and linguistics; archaeology and art; musicology; history, especially all branches of cultural and intellectual history, but exclusive of those branches that are essentially social, economic, and political history; and auxiliary sciences.
Сторінка 304 - A primary race is one which has been modified only by the operation of evolutionary factors, including the selection of its own intrinsic variations and of the modifications, adaptive or non-adaptive, possibly caused by environmental stimuli. A secondary or composite race is one in which a characteristic and stabilized combination of morphological and metrical features has been effected by a long-continued intermixture of two or more primary races within an area of relative isolation.
Сторінка 374 - The grants are designed to facilitate and encourage research by mature scholars who are accomplished in scientific methods of investigation, who are engaged in constructive projects of research, and who are in actual need of such aid and unable to obtain it from other sources.
Сторінка xv - May new style), this being the date of the publication of his " Proposal for Promoting Useful Knowledge among the British Plantations in America." 3 That the American Society was begun under the name of the Junto, and bore this name from the year 1750, the earliest recorded date of its existence, until the 13th of December, 1766.