Annual Report of the Board of Regents of the Smithsonian InstitutionThe Institution, 1921 |
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Сторінка 27
... various departments . In the department of geology this also afforded opportunity to thor- oughly clean and to some extent rearrange the exhibition series , so that when reopened to visitors the halls were more interesting than ever ...
... various departments . In the department of geology this also afforded opportunity to thor- oughly clean and to some extent rearrange the exhibition series , so that when reopened to visitors the halls were more interesting than ever ...
Сторінка 183
... various other functions of the aviator . The various elements comprising the complete wireless telephone set may be grouped into the following units : Power plant , trans- mitting unit , receiving unit , antenna system . The details of ...
... various other functions of the aviator . The various elements comprising the complete wireless telephone set may be grouped into the following units : Power plant , trans- mitting unit , receiving unit , antenna system . The details of ...
Сторінка 191
... various special fields not included in the above which may call for the use of wireless telephony , such as communication between various islands of a group - for example , the Hawaiian Islands — the wireless telephone furnishing in ...
... various special fields not included in the above which may call for the use of wireless telephony , such as communication between various islands of a group - for example , the Hawaiian Islands — the wireless telephone furnishing in ...
Зміст
Bureau of American Ethnology | 17 |
Report on the United States National Museum | 25 |
EXECUTIVE COMMITTEE AND REGENTS | 100 |
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acromegaly actinium agriculture airplane American appears areas astrographic atom birds blueberry body Bohemia Bureau Calama cent chilling cicada collection color crops culture dormant early eclipse eggs elephants entomologists expedition feet field forest gases geographic geological survey glands glass Government growth Guatemala helium important increase Indians insects interest investigations irrigation J. J. Thomson June 30 land mammoth Manchuria material ment method milpa National Museum natural nebulae Observatory observed obtained opal oxide park period photographs plants plates present production publications pupa radiation radium Ramsay Rathbun recent reclamation region right ascension River scientific Secretary shown Smithsonian Institution Smithsonian Report Sobral solar solar constant South species specimens spiral nebulae spirals stars supply temperature tion trees tropical tube United vacuum tube Valley vitreous volumes Washington wireless telephone