. Elementary zoology. Zoology. 2$2 ELEMENTARY ZOOLOGY the fang, which is movably articulated with the falx (fig. 93). In the falx is a poison-sac from which poison. Fig. 92.—The dog or wood tick, Dermacentoi' a?7ierica?ius male, the most common tick in the Northern States. (After Osborn.) flows through the hollow fang and out at its tip. The legs vary in relative length in different spiders, and each is made up of seven joints. The spinnerets (fig. 94), which are situated at the tip of the abdomen, are six in number (a few spiders have only four), and are like little short fingers. They have a
. Elementary zoology. Zoology. 2$2 ELEMENTARY ZOOLOGY the fang, which is movably articulated with the falx (fig. 93). In the falx is a poison-sac from which poison. Fig. 92.—The dog or wood tick, Dermacentoi' a?7ierica?ius male, the most common tick in the Northern States. (After Osborn.) flows through the hollow fang and out at its tip. The legs vary in relative length in different spiders, and each is made up of seven joints. The spinnerets (fig. 94), which are situated at the tip of the abdomen, are six in number (a few spiders have only four), and are like little short fingers. They have at their tips many fine Fig. 93.—The little spinning-tubes from each of which a eyes and jaws, ^ne sjjken thread issues when the spider is showing ialx L and fang of a spinning. These many fine threads fuse as spier. ( rom they issue to form a single strong cable or Jenkins and J Kellogg.) sometimes a flat rather broad band. The spinnerets are movable, and by their manipulation the desired kind of line is produced. The silk comes from. 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. New York : H. Holt and company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1902
