. First lessons in zoology. Zoology. SPIDERS AND THEIR IVEB-MAKING I97 struction. The webs made by the various individuals of any one species of spiders are always alike, however; indeed, each family of web-weavers has its own peculiar type-plan of web construction, and as we could distin- guish various families of non-web-weaving spiders by their habits of locomo- tion, so we can distin- guish the various families of web-weavers by the character of the webs. .. Most familiar to us probably are the "cob- webs " of the neglected corners and byways of the house and out-build- ings. The
. First lessons in zoology. Zoology. SPIDERS AND THEIR IVEB-MAKING I97 struction. The webs made by the various individuals of any one species of spiders are always alike, however; indeed, each family of web-weavers has its own peculiar type-plan of web construction, and as we could distin- guish various families of non-web-weaving spiders by their habits of locomo- tion, so we can distin- guish the various families of web-weavers by the character of the webs. .. Most familiar to us probably are the "cob- webs " of the neglected corners and byways of the house and out-build- ings. The family of cob- web weavers is a large one, and its species are not restricted to an in- door habitat, but many spin their loose, irregular webs in bushes. With them all the web is a tangled maze of silken , , , . , Fig. 157.—Burrow of trap-door spider threads, mostly m the cut open to show interior. (One-half form, of a flat or curved natural size; from specimen.) sheet of silk, on the under side of which the spider stands or runs, back downward. Sometimes the owner has a silken nest in a crack near the web, and there is some- times a short silken tube leading to the nest. The spiders themselves are usually small and very slim-legged. Examine a cobweb carefully. Note its irregular, un- symmetrical character. Can its general sheet-like form be made out ? Are there vertical threads running to it. 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, bookyear1903
