. Studies in animal life . Zoology; Nature study. STUDIES IN ANIMAL LIFE. 131 colony lias one nutritive fluid ia common. They are all actively engaged in securing food, and tlie labors of eacli enricli all. It is animal so- cialism of the purest kind— there are no rich and no poor, neither are there any, idlers. Formerly the coral - branch was regarded as one animal —an individual; and a tree was and is commonly regard- ed as one plant—an individ- ual. But no zoologist now is unaware of the fact that each polype on the branch is a distinct individual, in spite of its connections with the rest;
. Studies in animal life . Zoology; Nature study. STUDIES IN ANIMAL LIFE. 131 colony lias one nutritive fluid ia common. They are all actively engaged in securing food, and tlie labors of eacli enricli all. It is animal so- cialism of the purest kind— there are no rich and no poor, neither are there any, idlers. Formerly the coral - branch was regarded as one animal —an individual; and a tree was and is commonly regard- ed as one plant—an individ- ual. But no zoologist now is unaware of the fact that each polype on the branch is a distinct individual, in spite of its connections with the rest; and philosophic bota- nists are agreed that the tree is a colony of individ- ual plants—not one plant. Let us pass from the coral to the stem of some other polype, say a Campanularia. Above is the representation of such a stem, of the natural size, and beside it a tiny twig much magnified. You observe the ordinary polype issuing from one of the capsules, and expanding its coronal of tentacles in the water. The food it secures will pass along the digestive tract to each of the other capsules. Un- der the microscope you may watch this oscillation. Fig. 20.—Campanulaeia (mag- nified and natural size).. 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 Lewes, George Henry, 1817-1878. New York : Harper
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectn, booksubjectzoology
