Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Томи 1 – 2American Philosophical Society, 1838 |
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Сторінка 16
... Map . Its true place is 41 ° 45 ′ 9 ′′ N. latitude ; and 5 hours , 33 min . 34.3 sec . W. longitude from Green- wich . Also , South Bend , Lake Michigan , has been placed 3.9 miles too far east ; its true place being N. 41 6-7.
... Map . Its true place is 41 ° 45 ′ 9 ′′ N. latitude ; and 5 hours , 33 min . 34.3 sec . W. longitude from Green- wich . Also , South Bend , Lake Michigan , has been placed 3.9 miles too far east ; its true place being N. 41 6-7.
Сторінка 24
... needle , the variation of the needle , and the latitude and longitude of any place on the surface of the globe . " Dr. Patterson called the attention of the Society to some further extracts from the Report of the Naval Committee , 24.
... needle , the variation of the needle , and the latitude and longitude of any place on the surface of the globe . " Dr. Patterson called the attention of the Society to some further extracts from the Report of the Naval Committee , 24.
Сторінка 26
... the meridian , and the latitude and the longitude . With the variation given him , in the same manner , he determines the dip and the other results . He must know , however , if the dip be given , whether the place of observation is 26.
... the meridian , and the latitude and the longitude . With the variation given him , in the same manner , he determines the dip and the other results . He must know , however , if the dip be given , whether the place of observation is 26.
Сторінка 27
... latitude and longitude from the dip alone , or from the variation alone , was contrary to the first principles of the geometry of position ; since a point , in order to be determined in space , must be referred to three given surfaces ...
... latitude and longitude from the dip alone , or from the variation alone , was contrary to the first principles of the geometry of position ; since a point , in order to be determined in space , must be referred to three given surfaces ...
Сторінка 28
... latitude and longitude are determined by magnetic observations , it must be by both the dip and variation . Dr. Sherwood's method , therefore , could be of no use for nautical purposes , from the impossibility of observing the variation ...
... latitude and longitude are determined by magnetic observations , it must be by both the dip and variation . Dr. Sherwood's method , therefore , could be of no use for nautical purposes , from the impossibility of observing the variation ...
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1838.-From the Author 1838.-From the Society A. D. Bache Academy acid albâ et iridescente AMERICAN PHILOSOPHICAL SOCIETY anfractibus aperturâ apparatus appeared Boston calcium Chair Charles Gutzlaff Charles Nagy Chattahoochee River Chinese Committee conductor deflagration dentibus cardinalibus donations were received DU PONCEAU Dunglison eclipse electricity Elias Loomis entitled epidermide experiments favour of publication following donations galvanic Hare Hays heat Horner inches induction inflatâ intensity Isaac Lea John Vaughan Journal lævi lateralibus longis latitude LIBRARY longitude Loomis magnetic dip margaritâ albâ Mastodon means Meeting Memoir mercury metal meteors Miocene natibus needle Obs'y Observatory obtained Ohio ordered accordingly ovatâ paper Paris Patterson Philada Philadelphia plate PONCEAU Present President Proceedings Prof Professor Bache quinis referred remarks reported in favour ring River Royal Asiatic Society Sciences solar eclipse specimens Testâ tion tornado Unio valvulis vapour variation Walker Washington Western Reserve College
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