The Universal Preceptor: Being a General Grammar of Arts, Sciences, and Useful Knowledge ...A. Phelps, 1826 - 312 страница |
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Страница 19
... atmosphere ; and turn into sub- ́stances called oxides : the process is called oxidation . 79. If 10 lbs . of lead be melted and heated in this manner , it will be converted into an oxide called red lead ; and the red lead so produced ...
... atmosphere ; and turn into sub- ́stances called oxides : the process is called oxidation . 79. If 10 lbs . of lead be melted and heated in this manner , it will be converted into an oxide called red lead ; and the red lead so produced ...
Страница 99
... atmosphere from the objects in con- tact . 303. As the rays of light are turned out of their course , or refracted half a degree when they enter the atmosphere , the sun's rays , when they reach the earth , represent him a degree higher ...
... atmosphere from the objects in con- tact . 303. As the rays of light are turned out of their course , or refracted half a degree when they enter the atmosphere , the sun's rays , when they reach the earth , represent him a degree higher ...
Страница 149
... atmospheric air ; and carbon . Obs . 1. - Wood burnt in a close vessel till it has neither smell nor taste , will produce the basis of all vegetable matter called charcoal ; or , when purified , called carbon , which is the most ...
... atmospheric air ; and carbon . Obs . 1. - Wood burnt in a close vessel till it has neither smell nor taste , will produce the basis of all vegetable matter called charcoal ; or , when purified , called carbon , which is the most ...
Страница 150
... atmosphere would , in due time , be consumed by the breathing of animals and by flame , but for this provision of nature . The leaves of vegeta- bles give out oxygen in the day time , and keep up the due proportion which is necessary to ...
... atmosphere would , in due time , be consumed by the breathing of animals and by flame , but for this provision of nature . The leaves of vegeta- bles give out oxygen in the day time , and keep up the due proportion which is necessary to ...
Страница 180
... atmosphere uniting with certain parts of the body ; 3. That oxygen seems to be the acidifying principle : and that all acids are combinations of oxygen with other sub- stances ; 4. And that all salts are combination of an acid with oth ...
... atmosphere uniting with certain parts of the body ; 3. That oxygen seems to be the acidifying principle : and that all acids are combinations of oxygen with other sub- stances ; 4. And that all salts are combination of an acid with oth ...
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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