P. 18.—“Amœba,” a-mœˈba. Readers who live in warm climates will have no trouble in finding the amœba attached to the stems of plants or floating in pools of stagnant water. To find a specimen in December in temperate latitudes will be more difficult, but by collecting grass and stems of water plants, with water from a pool, and keeping them in a warm room for a time, specimens may be obtained.
P. 22.—“Cinchona,” cin-chōˈna. The tree from which the well known drug, Peruvian bark, is obtained.
“Quinine.” Kwiˈnīn is Webster’s preferred pronunciation, kwe-nīnˈ, Worcester’s. Quinine is an alkaloid obtained from the cinchona bark.
P. 28.—“Nucleus.” The nucleus may be easily seen in a thin section from an apple or potato, placed under a microscope.
“Mucilaginous,” mū-ci-lăgˈi-noŭs. Like mucilage.
P. 29.—“Silica,” sĭlˈi-ca. Flint or quartz.
P. 31.—“Tannin,” tănˈnin, or tannic acid. An astringent principle found in nut-galls and the bark of many trees. If treated with ether a solid is obtained which is soluble in water. It is used in tanning leather.
“Starch.” The grains of starch are easily found. Wheat, oats, arrow-root, sage and tapioca all furnish excellent examples.
“Crystals.” Răphˈi-des is the name given by botanists to the little crystals found in the tissues. A section of an onion will reveal them. Also, the juice of the hyacinth.