The temperance primer : an elementary lesson book designed to teach the nature and properties of alcoholic liquors, and the action of alcohol on the body / by J. James Ridge.

  • Ridge, J. J. (John James), 1847-1908
Date:
1879
Catalogue details

Licence: Public Domain Mark

Credit: The temperance primer : an elementary lesson book designed to teach the nature and properties of alcoholic liquors, and the action of alcohol on the body / by J. James Ridge. Source: Wellcome Collection.

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    Experiment VIII. — Take a little flour of wheat, put it into a small piece of muslin, and twist it up: now squeeze it about with, your fingers in a small basin of water: by doing this the starch is washed away and a sticky mass is left in the muslin : this mass is gluten. If you let the milky water stand a short time the starch will settle at the bottom. Starch consists of little bodies more or less round or oval. The starch-grains of wheat are round, and about 1,000 would lie side by side Fig. 4. in an inch. Those of rice and potatoes are larger and of an oval shape. Starch does not contain any Nitrogen. [Its formula is C12Hj0Oio.] Remember, then, that fat, sugar, and starch, which arc non-nitrogenous substances—that is, do