File:A healthy body. A textbook on anatomy, physiology, hygiene, alcohol, and narcotics. For use in intermediate grades in public and private schools (1889) (14576567509).jpg

Identifier: healthybodytextb00stow (find matches)
Title: A healthy body. A textbook on anatomy, physiology, hygiene, alcohol, and narcotics. For use in intermediate grades in public and private schools
Year: 1889 (1880s)
Authors: Stowell, Charles H(enry) 1850- (from old catalog)
Subjects: Human physiology
Publisher: Chicago, J.C. Buckbee and company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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ittle grains containing starch,which are hence called starch-grains. How to obtain this Starch. Cut a potato in thin slices,and place these in water. By stirring them you canmake the water look milky. Now remove the pieces ofpotato, and let the water become quiet. A white powderwill settle to the bottom of the dish. This is pure potatostarch, and when placed under the microscope will showsome oval bodies, as illustrated in Fig. 1. Other Starches. We take the wheat to the miller inorder that he may remove some layers of cells that areindigestible, and return the rest to us as wheat flour.The starch grains in this do not look like those of potato;they are smaller, and more nearly round. (Fig. 1.) Oatstarch that is used for cooking is composed of grains CKLLS. 23 shaped otherwise, as is seen in the figure. Even a leafis shown by the microscope to consist of minute cells. Cells in the Vegetable Kingdom. Thus we learn thatevery part of the vegetable kingdom is composed of cells. n tr^ °G)
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qj.fe.o W&^^ Fig. 1. Starch-grains: (1) from the potato, —potato starch-grains; (2) fromwheat, —wheat starch-grains; (3) from oat, — oat starch-grains; (4) cells fromthe surface of a leaf. Cells in the Animal Kingdom. The same thing is trueof the animal kingdom. When we look at a drop ofblood we little think that the microscope would show init vast numbers of minute cells; and yet there are asmany as five millions of them in every drop. Then welook at the skin, and think it is one solid mass of cover-ing ; but the microscope shows that it is made up of anumber of layers of cells. 24 A HEALTHY BODY. The Whole Body a Collection of Cells. By means of themicroscope we learn that all the organs and tissues ofthe system are composed of minute bodies, called cells.(Pig. 2.) The Cells are not alike. There are round cells, long, nar-row cells, and cells of all shapes and sizes. Some of

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