. Elementary textbook of economic zoology and entomology. Zoology; Insect pests. CHAPTER II A STUDY OF THE FROG Before beginning a discussion of the animal kingdom as a whole, or of any of the important groups into which it is divided a few animals representing different conditions of bodily make-up may be studied. The student will then have some definite, first-hand knowledge of the structure and organization of FIG. i.—A common western frog, Rana boyll. A frog or a common garden toad, may be used as a type of a vertebrate animal, that is, one with a backbone. Except during the cold
. Elementary textbook of economic zoology and entomology. Zoology; Insect pests. CHAPTER II A STUDY OF THE FROG Before beginning a discussion of the animal kingdom as a whole, or of any of the important groups into which it is divided a few animals representing different conditions of bodily make-up may be studied. The student will then have some definite, first-hand knowledge of the structure and organization of FIG. i.—A common western frog, Rana boyll. A frog or a common garden toad, may be used as a type of a vertebrate animal, that is, one with a backbone. Except during the cold winter months frogs may usually be found around ponds or along the banks of streams. In the spring and early summer toads, too, are common around the water where they are breeding. Later in the summer toads may be found in almost any garden, where they can best be collected at dusk. 4. 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 Kellogg, Vernon L. (Vernon Lyman), 1867-1937; Doane, Rennie Wilbur, 1871-. New York, H. Holt and company
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