 | American Association for the Advancement of Science - 1849 - 694 pages
...on this continent. Such is not the case. Our National Observatory at Washington must have existed a half a century before it will be able to furnish independent...observations to the utmost extent of their utility. I propose, also, to give, in the astronomical ephemeris, the times of transit, and the corresponding... | |
 | American Association for the Advancement of Science - 1849 - 650 pages
...on this continent. Such is not the case. Our National Observatory at Washington must have existed a half a century before it will be able to furnish independent...observations to the utmost extent of their utility. I propose, also, to give, in the astronomical ephemeris, the times of transit, and the corresponding... | |
 | American Association for the Advancement of Science - Science - 1850 - 492 pages
...on this continent. Such is not the case. Our National Observatory at Washington must have existed a half a century before it will be able to furnish independent observations sufficient'for the determination of a correct theory of the moon or primary planets. But these theories... | |
 | American Association for the Advancement of Science - Science - 1885 - 490 pages
...on this continent. Such is not the case. Our National Observatory at Washington must have existed a half a century before it will be able to furnish independent...myself of the Washington observations to the utmost of their utility. I propose, also, to give, in the astronomical ephcmcris, the times of transit, and... | |
 | 1850 - 964 pages
...selection of an American first meridian, as the basis of its calculations. Lieut. Davis observes : " Our National Observatory at Washington must have existed...observations to the utmost extent of their utility." Thus it appears that the materials and whatever is most valuable and indispensable for the calculation... | |
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... name implies, strictly arbitrary. It may be thought that there are reasons of a scientific character why the National Observatory at Washington should be selected as the nominal origin of longitude, on this continent. Such is not the case. Our National... 