. The essentials of botany. Botany. BOTANY. CHAPTER I. PROTOPLASM AND PLANT-CELLS. 1. Protoplasm.—The living part of every plant is a soft- ish, almost transparent substance called protoplasm. It may be seen in ordinary plants by making thin slices of the rapidly growing parts, and then magnifying them under a good microscope. Such a specimen is made up almost wholly of protoplasm. (Fig. 1.) 2. Although protoplasm is so abun- dant, its exact chemical composition is not known. It appears to be a mix- ture of several chemical compounds, and contains carbon, hydrogen, oxy- gen, nitrogen, sulphur,
. The essentials of botany. Botany. BOTANY. CHAPTER I. PROTOPLASM AND PLANT-CELLS. 1. Protoplasm.—The living part of every plant is a soft- ish, almost transparent substance called protoplasm. It may be seen in ordinary plants by making thin slices of the rapidly growing parts, and then magnifying them under a good microscope. Such a specimen is made up almost wholly of protoplasm. (Fig. 1.) 2. Although protoplasm is so abun- dant, its exact chemical composition is not known. It appears to be a mix- ture of several chemical compounds, and contains carbon, hydrogen, oxy- gen, nitrogen, sulphur, besides others of less importance. Nitrogen is aJ' ways present. 3. When protoplasm is examined under a high magnifying power it generally appears to be somewhat from the root of crown im- ^ P^, „ ^ ,. perial. showing protoplasm grranular. 1 here may oiten be dis- (»), vacuoles (s), and thin " '' cell-walls (ft). Magnified 550 tinguished a clear transparent non- times. granular part making up the body of the protoplasm, and in this the granules are Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bessey, Charles E. (Charles Edwin), 1845-1915. New York : H. Holt and company, ;
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