The Universal Preceptor: Being a General Grammar of Arts, Sciences, and Useful Knowledge ...A. Phelps, 1826 - 312 страница |
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Страница 25
... heat , producing , what is called the frit ; this is then put into moderate - sized vessels , and exposed to a violent heat , till melted ; and , on cooling a little , it becomes a kind of hot paste , which may be worked and moulded to ...
... heat , producing , what is called the frit ; this is then put into moderate - sized vessels , and exposed to a violent heat , till melted ; and , on cooling a little , it becomes a kind of hot paste , which may be worked and moulded to ...
Страница 33
... heat of the sun , from eggs laid by a lively moth , in the preceding year . Its food is the leaves of the mulberry ; in which tree it lives in warm climates . After it attains its full growth , it winds itself in its silky web ...
... heat of the sun , from eggs laid by a lively moth , in the preceding year . Its food is the leaves of the mulberry ; in which tree it lives in warm climates . After it attains its full growth , it winds itself in its silky web ...
Страница 76
... heat , life , and vegetation ; and without whose genial influence all the earth would become a dark , solid mass of ice , is 900,000 miles in diameter ; and the earth is 95 millions of miles distant from it . 252. The Sun is the centre ...
... heat , life , and vegetation ; and without whose genial influence all the earth would become a dark , solid mass of ice , is 900,000 miles in diameter ; and the earth is 95 millions of miles distant from it . 252. The Sun is the centre ...
Страница 78
... heat from the sun , serve as centres to other minor globes called moons . These satellites ac- company the planet in its tour round the sun ; serving to balance its motions , and to reflect by night the sun's light on the planet for the ...
... heat from the sun , serve as centres to other minor globes called moons . These satellites ac- company the planet in its tour round the sun ; serving to balance its motions , and to reflect by night the sun's light on the planet for the ...
Страница 98
... heat of summer is produced by two caus- es ; first , by the greater intensity of the sun's rays , owing to their falling with increased perpendicularity and density ; and secondly , by the excess of the length of the days over that of ...
... heat of summer is produced by two caus- es ; first , by the greater intensity of the sun's rays , owing to their falling with increased perpendicularity and density ; and secondly , by the excess of the length of the days over that of ...
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acid acre ancient angle animals aqueous humour Asia atmosphere atoms blood bodies Britain Cæsar called carbon carbonic acid cause chief chyle circle clouds colours combined consists copper countries degrees distance divided division duce earth effect electrical England English equal equator fall fire fluid force four glass globe half hatchment heat heavens Hence inches inhabitants insects iron islands Julius Cæsar Jupiter kinds lacteals land lens light lines matter Mercury metals miles millions mineral moon motion move nations nature nerves north pole object Obs.-The ocean optic nerve orbit oxygen pass phenomena pistil plants pounds principle produce proportion quadrupeds rays round Saturn savage nations sense side soil solid Sophism south pole species stamens stars stone substance sulphur sulphuric acid supposed surface Syllogism telescope tion tribes various vegetables velocity vibrations whole winds