This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1872 Excerpt: ... inert matter, it is no mysterious fluid gives life to this piece of mechanism. A stretched spring communicates its movement to a series of admirably arranged pieces, to a succession of wheels following one another, which, in their turn, impart to the hands the motion which carries them over the divisions of the dial ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1872 Excerpt: ... inert matter, it is no mysterious fluid gives life to this piece of mechanism. A stretched spring communicates its movement to a series of admirably arranged pieces, to a succession of wheels following one another, which, in their turn, impart to the hands the motion which carries them over the divisions of the dial-plate." The chemist, in dissecting the body of Nature, proceeds in the same manner. When he studies a substance, he separates it into its component elements; he takes to pieces its different parts, and thus analyses it. He then occupies himself in putting together again the portions which he has been separating---in uniting the elements which he has been dividing; in fact, in the work of synthesis. In glancing at the infinite number of objects, organic and inorganic, which cover the surface of the globe--plants of every description, animals the most various, minerals of all sorts--one might feel tempted to believe that an innumerable quantity of distinct elements composed this vast array of bodies so different. But such is not the case. If we analyse the whole body of Nature, trees and animals, stones and rocks, water and air, we are compelled to admit that a limited number of elements, united by twos, by threes, by fours, form the infinite variety of objects which constitute the magnificent spectacle we term the universe. The air is formed by a mixture of the gases nitrogen and oxygen; water contains one of the atmospheric gases, oxygen, united to. another gas, hydrogen; vegetable and animal substances are again formed of hydrogen, oxygen, nitrogen, and carbon. If to these elements be added sulphur, phosphorus, potassium, sodium, aluminum, calcium, silicium, iron, and some others, you will have a list of the chief bodies which, by their u...
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