Scientific American Supplement, No. 446, July 19, 1884 eBook

This eBook from the Gutenberg Project consists of approximately 133 pages of information about Scientific American Supplement, No. 446, July 19, 1884.

Scientific American Supplement, No. 446, July 19, 1884 eBook

This eBook from the Gutenberg Project consists of approximately 133 pages of information about Scientific American Supplement, No. 446, July 19, 1884.
samples of wheat grown in the Dutch Colony at New Netherlands were shown in Holland.  It is probable that wheat was sown in the Plymouth Colony prior to 1629, though we find no record of it, and in 1629 wheat was ordered from England to be used as seed.  In 1718 wheat was introduced into the valley of the Mississippi by the “Western Company.”  In 1799 it was among the cultivated crops of the Pimos Indians of the Gila River, New Mexico.

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DETERMINATION OF STARCH.

According to Bunzener and Fries (Zeitschrift fur das gesammte Brauwesen), a thick, sirupy starch paste prepared with a boiling one per cent solution of salicylic acid is only very slowly saccharified, and on cooling deposits crystalline plates of starch.  For the determination of starch in barley the finely-ground sample is boiled for three-quarters of an hour with about thirty times its weight of a one per cent solution of salicylic acid, the resulting colorless opalescent liquid filtered with the aid of suction, and the starch therein inverted by means of hydrochloric acid.  The dextrose formed is estimated by Fehling’s solution.  The results are one to two per cent higher than when the starch is brought into solution by water at 135 deg.  C.

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Scientific American Supplement, No. 446, July 19, 1884 from Project Gutenberg. Public domain.