Annual Report of the Board of Regents of the Smithsonian InstitutionThe Institution, 1921 |
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Сторінка 20
... method of reducing solar radia- tion observations , so as to determine the solar constant of radiation with at least equal precision to that obtained by the older method , the advantages of the new method being ( 1 ) its independence of ...
... method of reducing solar radia- tion observations , so as to determine the solar constant of radiation with at least equal precision to that obtained by the older method , the advantages of the new method being ( 1 ) its independence of ...
Сторінка 87
... method of observation . Hith- erto the new method has enabled us to save at Calama a number of days of observation which , owing to the obvious changes in trans- parency of the atmosphere , due to formation or disappearance of clouds ...
... method of observation . Hith- erto the new method has enabled us to save at Calama a number of days of observation which , owing to the obvious changes in trans- parency of the atmosphere , due to formation or disappearance of clouds ...
Сторінка 89
... method , and the advantages ( 1 ) that the new method is independent of the variability of atmospheric trans- parency , and ( 2 ) , that it requires only about one - fifth as much time as the old . Respectfully submitted . Dr. C. D. ...
... method , and the advantages ( 1 ) that the new method is independent of the variability of atmospheric trans- parency , and ( 2 ) , that it requires only about one - fifth as much time as the old . Respectfully submitted . Dr. C. D. ...
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Bureau of American Ethnology | 17 |
Report on the United States National Museum | 25 |
EXECUTIVE COMMITTEE AND REGENTS | 100 |
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