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altitude angle appear astronomers atmosphere attraction axis body calculated cause celestial centre circle comet compared correct declination describe determined diameter difference direction distance double draw earth east eclipse effect equal equator error fact fall fixed force give given globe gravity greater half heavenly body heavens hence horizon inches inclination increase instance Jupiter known latitude laws length less light longitude Mars mass matter mean measured meridian method miles minutes moon moon's motion move nearly object observations opposite orbit pass period planet Plate polar pole portion position present produced proportion remarkable represent result revolve ring round satellites seconds seen shadow shew side sidereal solar space sphere stars sun's suppose surface telescope termed tides tion transit true turn varies Venus whole wire zenith
Página 131 - Milky-way, when exploring that region with his best glasses, he has had fields of view which contained no less than 588 stars, and these were continued for many minutes; so that " in one quarter of an hour's time there passed no less than one hundred and sixteen thousand stars through the field of view of his telescope.
Página 42 - ... posterity; but the record remains, and transfuses all its own exactness into every determination which takes it for a groundwork, giving to inferior instruments — nay, even to temporary contrivances, and to the observations of a few weeks or days — all the precision attained originally at the cost of so much time, labour, and expense.
Página 178 - That the interval between the orbits of any two planets is about twice as great as the inferior interval, and only half the superior one.
Página 11 - ... it is most probably also inhabited, like the rest of the planets, by beings whose organs are adapted to the peculiar circumstances of that vast globe.
Página 1 - And yet, fair bow, no fabling dreams But words of the Most High, Have told why first thy robe of beams Was woven in the sky.
Página 330 - Mr. Long's name stands deservedly so high, that those who feel any interest in a work like this will need nothing more than the above brief announcement to assure them that we are likely to have here an edition of Cicsar surpassing and superseding any one that has previously appeared in this country.
Página 330 - Long's connexion with the work is something more than nominal. It is a bond fide production of his hand, — not a mere make-up from foreign and other sources, labelled with his name. From first to last it bears the impress of his vigorous and well-stored mind. We scarcely know which more to admire, the ability with which important matters are handled, or the honest pains-taking care which has been bestowed on the minutest points, — points which, though essential to accuracy, many an editor would...
Página 42 - The stars are the landmarks of the universe ; and, amidst the endless and complicated fluctuations of our system, seem placed by its Creator as guides and records, not merely to elevate our minds by the contemplation of what is vast, but to teach us to direct our actions by reference to what is immutable in his works.
Página 180 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Página 42 - ... and in all places, of a delicacy so extreme as to be a test for every instrument yet invented by man, yet equally adapted for the most ordinary purposes; as available for regulating a town clock as for conducting a navy to the Indies ; as effective for mapping down the intricacies of a petty barony as for adjusting the boundaries of Transatlantic empires. When once its place has been thoroughly ascertained and carefully recorded, the brazen circle with which...