Science, Том 23John Michels (Journalist) American Association for the Advancement of Science, 1894 Since Jan. 1901 the official proceedings and most of the papers of the American Association for the Advancement of Science have been included in Science. |
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... Light House Board , of which board he was then the scientific member . When I was made Chief Clerk of the Light House Board in 1869 it became my duty , as well as a privilege which I highly prized , to act to a certain extent as his ...
... Light House Board , of which board he was then the scientific member . When I was made Chief Clerk of the Light House Board in 1869 it became my duty , as well as a privilege which I highly prized , to act to a certain extent as his ...
Стр. 4
... light house vessel within reach for that day , and the light house district officers were directed to give every practical aid to the expedition . This they did with great readiness and good effect . Thus it has happened that ...
... light house vessel within reach for that day , and the light house district officers were directed to give every practical aid to the expedition . This they did with great readiness and good effect . Thus it has happened that ...
Стр. 108
... light effect and consists of an apparent bright shaft of light extending upwards to the zenith over bright lights . If the lights are swung high it may also be seen extending from the light to the earth . It only occurs under certain ...
... light effect and consists of an apparent bright shaft of light extending upwards to the zenith over bright lights . If the lights are swung high it may also be seen extending from the light to the earth . It only occurs under certain ...
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Meeting of the Iowa Academy of Sciences | 10 |
ROUGHING IT WITH AN ECLIPSE PARTY | 42 |
ESTERBROOKS | 56 |
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