. Lessons in nature study. Nature study. SPIDERS. 117 There are other kinds of webs which other kinds of spiders spin. Indeed, among the orb-weavers alone, there is great variety in the character of the webs; some orb-webs for example, lack a sector of the circle, the web being otherwise constructed on the regular orb-web plan; others are composed of perhaps less than one-half a circle, although still with radii, and with con- centric arcs of circles in place of complete circles in the spiral zone. Certain kinds of spiders spin a peculiar broad line or rather baud of curling silk, which leads
. Lessons in nature study. Nature study. SPIDERS. 117 There are other kinds of webs which other kinds of spiders spin. Indeed, among the orb-weavers alone, there is great variety in the character of the webs; some orb-webs for example, lack a sector of the circle, the web being otherwise constructed on the regular orb-web plan; others are composed of perhaps less than one-half a circle, although still with radii, and with con- centric arcs of circles in place of complete circles in the spiral zone. Certain kinds of spiders spin a peculiar broad line or rather baud of curling silk, which leads from the snare to the. Fig. 74. The triangle sp\(\&r {Hypliotes) and its snare. side retreat of the spider. Or they make out of this band of curled silk a central zone not composed of a spiral line but of a closed oval or circular shield. A certain very small spider spins a triangular web (fig. 74), from which a main stay line runs upon which the spider—triangle spider it is called—rests with a loop of the stay line held between the fore and hind legs. When an insect alights upon the snare the spider looses the hold of the. 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 Jenkins, Oliver Peebles; Kellogg, Vernon L. (Vernon Lyman), 1867-1937. joint author. San Francisco, The Whitaker & Ray Company
Size: 1908px × 1310px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpubl, booksubjectnaturestudy
