An Easy Grammar of Geography: Intended as a Companion and Introduction to the "Geography on a Popular Plan for Schools and Young Persons"...

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R. Phillips, 1811 - 144 páginas

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Página 78 - Find the latitude of the given place, and elevate the north or south pole, according as the latitude is north or south, so many degrees above the horizon as are equal to the latitude...
Página 60 - Bring one of the places to the brazen meridian ; mark its longitude ; then bring the other place to the meridian, and the number of degrees between its longitude and that of the first mark is the difference of longitude.
Página 66 - Find by the last problem, the place to which the sun is vertical at the given...
Página 67 - Find the place to which the sun is vertical at that time, and bring that place to the zenith, and set the index to the upper twelve : then turn the globe till the...
Página 42 - Between the narrow branches of the northern extremity of the Red Sea, are Mount Sinai and Mount Horeb, on which are several cells or chapels possessed by monks. Here also is the wilderness where the children of Israel, on quitting Egypt, wandered forty years before their entrance into Canaan.
Página 78 - Rectify the globe to the latitude of the place ; bring the sun's place in the ecliptic to the meridian, and set the index to 12.
Página 77 - Def, The right ascension of any heavenly body is its distance from the first meridian, or that which passes through the first point of Aries, counted on the equinoctial.
Página 60 - Rule. If the places are in the same hemisphere, bring each to the meridian, and subtract the latitude of the one from that of the other; if in different hemispheres, add the latitude of the one to that of the other, and the sum will show the difference of latitude.
Página 75 - To find the Latitude and Longitude of a Star. Put the centre of the quadrant of altitude on the pole of the ecliptic, and its graduated edge on the star; then the degree of the quadrant cut bv the star is its latitude; and the degree of the ecliptic cut by the quadrant is its longitude.
Página 63 - Only double the time of the sun's rising that day, and it gives the length of the night ; double the time of its setting, and it gives the length of the day.

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