Smithsonian Contributions to KnowledgeSmithsonian Institution, 1863 - 151 páginas |
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Página 13
... Ellicottville , N. Y. - Near Valley Creek , 100 yards S. E. from Episcopal Church . 113 chains nearly E. from transit meridian line , Aug. 15. Aug. 16 , station S. of former under an elm tree near the creek ( Gr . Valley ) . Date . Time ...
... Ellicottville , N. Y. - Near Valley Creek , 100 yards S. E. from Episcopal Church . 113 chains nearly E. from transit meridian line , Aug. 15. Aug. 16 , station S. of former under an elm tree near the creek ( Gr . Valley ) . Date . Time ...
Página 30
... Ellicottville . 9. Bath . 10. Silver Lake . Chronometer Grant No. 3861 , London . For chronometer error and rate . Chron . fast . July 19 , Philadelphia time Oh 00m 068.0 Daily rate gaining . 29.03 Aug. 30 , 66 66 01 31.4 2.11 Sept. 14 ...
... Ellicottville . 9. Bath . 10. Silver Lake . Chronometer Grant No. 3861 , London . For chronometer error and rate . Chron . fast . July 19 , Philadelphia time Oh 00m 068.0 Daily rate gaining . 29.03 Aug. 30 , 66 66 01 31.4 2.11 Sept. 14 ...
Página 37
... Ellicottville . — Aug . 14 , 1841. Lat . 42 ° 18'.1 ; long . 78 ° 42 ′ . Abstract of Declination Observations . N. end . 0 47.2 W. 0 45.7 W. 1 19.2 W. 1 18.7 W. + 1 02.7 S. end . 0 55.2 W. 0 57.2 W. 0 46.7 W. 0 46.1 W. -0 51.3 +0 05.7 1 ...
... Ellicottville . — Aug . 14 , 1841. Lat . 42 ° 18'.1 ; long . 78 ° 42 ′ . Abstract of Declination Observations . N. end . 0 47.2 W. 0 45.7 W. 1 19.2 W. 1 18.7 W. + 1 02.7 S. end . 0 55.2 W. 0 57.2 W. 0 46.7 W. 0 46.1 W. -0 51.3 +0 05.7 1 ...
Página 40
... 51.2 E. Aug. 9 , 0 30.0 W. Aug. 12 , 0 52.5 W. 8 Ellicottville Aug. 14 , 2 35.7 W. 9 Bath Aug. 19 , 3 31.4 W. 10 Silver Lake Aug. 23 , 4 30.2 W. Station . Date . Observed time of 10 Corresponding time 40 MAGNETIC SURVEY OF PENNSYLVANIA .
... 51.2 E. Aug. 9 , 0 30.0 W. Aug. 12 , 0 52.5 W. 8 Ellicottville Aug. 14 , 2 35.7 W. 9 Bath Aug. 19 , 3 31.4 W. 10 Silver Lake Aug. 23 , 4 30.2 W. Station . Date . Observed time of 10 Corresponding time 40 MAGNETIC SURVEY OF PENNSYLVANIA .
Página 41
Williamsport RECAPITULATION OF OBSERVED LATITUDES , 1841 . Curwinsville Mercer Erie Dunkirk Ellicottville Bath Silver Lake 41 ° 14'.0 40 57.7 41 13.8 42 07.5 42 29.3 42 18.1 42 20.8 41 56.6 Comparison of Declination for Secular Change ...
Williamsport RECAPITULATION OF OBSERVED LATITUDES , 1841 . Curwinsville Mercer Erie Dunkirk Ellicottville Bath Silver Lake 41 ° 14'.0 40 57.7 41 13.8 42 07.5 42 29.3 42 18.1 42 20.8 41 56.6 Comparison of Declination for Secular Change ...
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annual variation April May June aurora b c m Baffin Bay Bellot Straits bi-hourly bifilar bm z 66 BOARD THE YACHT Calm 1 N. E. Calm Calm Calm copper curves Dawn at 7h deflection diagram difference Dip reduced Dip when loaded disturbances diurnal variation Div's dovekies dusk at 4h epoch Fahr fathoms February March April feet Girard College horizontal force Hour angle hourly January February March July August Latitude lunar lunar effect Lunitidal interval magnetic declination maxima and minima maximum Mean Lat Midn't midnight minimum month monthly mean moon Moon's N. W. by N Needle Noon Philadelphia Port Kennedy readings Referred mean Relative total intensity Rensselaer Harbor scale divisions seen summer Temp temperature Toronto values W. N. W. Calm weight wind winter YACHT FOX ос