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| ||Oxygen|Hydrogen -------------+-------+-------+-------+---------+-------++------+-------- Lignin, or | | | | | || | Woody Fibre| 51.45 | 42.73 | 5.82 | or51.45 | 48.55 || | Starch | 43.55 | 49.63 | 6.77 | 43.55 | 56.45 || | Sugar | 42.47 | 50.63 | 6.90 | 42.47 | 57.53 || | Gum | 42.23 | 50.84 | 6.93 | 42.23 | 57.77 || | Alcohol | 51.98 | 34.32 | 13.70 | 51.98 | 38.99 || | 9.03 Acetic Acid | 50.22 | 44.15 | 5.63 | 50.22 | 46.91 || 2.87 | Resin | 75.94 | 13.34 | 10.72 | 75.94 | 15.16 || | 8.90 Wax | 81.79 | 5.54 | 12.76 | 81.79 | 6.30 || | 11.01 -------------+-------+-------+-------+---------+-------++------+-------- By a reference to the foregoing table it will be easily understood how slight a change in the proportion of the ingredients of any one of the substances contained therein will convert it into an entirely different one. In chemistry we are able, to a certain extent, to imitate the operations of nature; but we must follow in the same course laid down by her; thus, we can convert woody fibre, or sawdust and starch, into sugar, gum, alcohol, and acetic acid; but we cannot convert alcohol, acetic acid, or gum into sugar, starch or woody fibre; and of such importance is a slight alteration of the proportions of these elements--carbon, oxygen, and hydrogen--that the abstraction of carbon from sugar, and the addition of a portion of the prime support of life, vegetation and combustion, oxygen, changes the harmless sugar into the most violent of poisons, oxalic acid, which consists of 26.57 carbon, 70.69 oxygen, and 2.74 hydrogen. Let us now examine the action of lime on sugar, and we shall find it equally, if not more, injurious than on the other substances. Sugar is capable of dissolving half its weight of lime, by which its sweet taste is destroyed, and it becomes converted into gum; the lime abstracting carbonic acid from it to form a carbonate of lime or chalk. It will be seen by the above table that-- 100 parts of sugar contain 42.47 carbon. 100 parts of gum contain 42.23 ditto. ----- Difference 24 So that, if we extract 24-100ths of a grain of carbon from 100 grains of sugar, we convert them into gum. Let us suppose that about two ounces of lime, or say 1,000
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