A Manual of Astronomy and the Use of the Globes ...

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Ivison & Phinney, 1854

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Page 16 - The circumference of every circle is supposed to be divided into 360 equal parts, • called degrees, each degree into 60 minutes, and each minute into 60 seconds, etc.
Page 98 - Lay the graduated edge of the quadrant over both places, so that the division marked 0 may be on one of them ; and the number of degrees between them, reduced to miles, will be the distance required.
Page 17 - A CIRCLE is a plane figure, bounded by a curved, line, every point of which is equally distant from a point within, called the centre.
Page 8 - History of the United States for the use of Schools and Academies," " The American Speaker,
Page 28 - The tropics are two small circles parallel to the equator at the distance of 23 28' from it ; the northern, is called the tropic of cancer, and the southern, the tropic of Capricorn. — [Fig. 2.] 64. The tropics are the limits of the torrid zone. 65. The polar circles are small circles parallel to the equator, at the distance of 66 32' from it, or 23 28
Page 12 - College, embracing his Course of Theological Lectures, his Academic Addresses, and a selection from his Sermons, with a Memoir of his Life and Character. 2 Vols. 8vo. $3.00. "They will ever form standard volumes in American Theological Literature.
Page 36 - The DECLINATION of a heavenly body is its distance north or south of the celestial equator, measured on a meridian.
Page 31 - Vertical circles are those which pass through the poles of the horizon, (the zenith and nadir,) perpendicular to it. The meridian is that vertical circle which passes through the north and south points. The prime vertical is that vertical circle which passes through the east and west points. The altitude of a body is its elevation above the horizon, measured on a vertical circle. The azimuth of a body is its distance, measured on the horizon, from the meridian to a vertical circle passing through...
Page 113 - Make the elevation of the pole equal to the latitude of the place ; find the sun's place in the ecliptic, bring it to the meridian, and set the index to 12.
Page 3 - Elements of Chemistry, containing the Principles of the Science, both experimental and theoretical ; intended as a Text-book for Academies, High Schools and Colleges : by Alonzo Gray, AM, Teacher of Chemistry and Nat. Hist, in the Teachers

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