. Biology in America. Biology. Descriptive Biology 93 of tlip green plant. Yet others contain within tliemselves the magic chlorophyl, whose beautiful green delights our eyes in the early verdure of the spring, and by whose means Nature performs her wonderful chemistry, converting carbon dioxide and water into sugar, which plants and animals alike may use as food. Many, notably the Sporozoa and some flagel- lates, are parasitic, and in some cases are the cause of plagues of man and beast. In the world of the little as well as in that of the great,. Lower Plant Life 1, Spirogyra; 2, desmids; 3,
. Biology in America. Biology. Descriptive Biology 93 of tlip green plant. Yet others contain within tliemselves the magic chlorophyl, whose beautiful green delights our eyes in the early verdure of the spring, and by whose means Nature performs her wonderful chemistry, converting carbon dioxide and water into sugar, which plants and animals alike may use as food. Many, notably the Sporozoa and some flagel- lates, are parasitic, and in some cases are the cause of plagues of man and beast. In the world of the little as well as in that of the great,. Lower Plant Life 1, Spirogyra; 2, desmids; 3, a diatom. 1 and 3 original, 3 from a preparation by Elmore, 2 from Needham & Lloyd's "Life of Inland Waters," Comstock Publishing Company. we find the role of the hunter and the hunted. Usually it is the smaller fry which are the victims, but sometimes it is they which take the hunter's part, attacking and destroying animals much larger than themselves. Chief among these is Didin- ium, a little creature about 1/150 inch in length with a bor- ing proboscis by means of which it attacks and engulfs other Protozoa from three to six times as large as itself. The cus- tomary daily ration of this little gourmand is one or two Paramoecia, but when especially hungry it may consume as many as four or five of these animals. As protection against their insatiable foes many Protozoa. 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 Young, R. T. (Robert Thompson), b. 1874. Boston, R. G. Badger
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