Archive image from page 90 of American spiders and their spinning. American spiders and their spinning work. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits CUbiodiversity1121211-9742 Year: 1889 ( THE ARMATUKE OF ORBWEBS : VISCID SPIRALS. 91 Thus Fig. 86 will represent a section of a snare upon which an Orb- weaver is spinning in her spirals. She has finished her task along the beaded line, BL, and is working upon a line L. .Just beyond it, imme- diately behind her, the string numbered 5 shows a white unbroken surface; No. 4 i
Archive image from page 90 of American spiders and their spinning. American spiders and their spinning work. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits CUbiodiversity1121211-9742 Year: 1889 ( THE ARMATUKE OF ORBWEBS : VISCID SPIRALS. 91 Thus Fig. 86 will represent a section of a snare upon which an Orb- weaver is spinning in her spirals. She has finished her task along the beaded line, BL, and is working upon a line L. .Just beyond it, imme- diately behind her, the string numbered 5 shows a white unbroken surface; No. 4 is slightly ruffled; in the string No. 3 a few points of segregation have begun to appear; at No. 2 the beads are nearly perfected on the part nearest the spider and quite finished on the further half. On string No. 1 the beads are completely formed. The figure, although sketched from na- ture as far as it is possible to draw such swiftly changing objects, is neces- sarily in part diagramatic. However, it accurately expresses the facts. The beads when newly formed are of a white color, translucent and glistening. They are uniform in size, or nearly so, but there is a constant tendency in the first-formed minute beads to undergo a further process of aggregation, thus making larger beads. These large beads will often be found at the crossing of the lines. The effect of rain upon the beads is to blend sev- eral into one until quite large globules are _? , formed, in good Dissolved , . , . , by Rains. P' d with water. If the rain ' - 'ers'n illustrating the crystallizing of beads. SF, spiral foundation; BL, beaded line; L, line just spun ; 2, 3, strings on be continued it dissolves the which beads are forming; SP, the spider. viscid material, and the portions which do not drop off remain as large beads. These also soon pass away, leaving the snare without the ordinary armature for efficient service. I have frequently tested this matter during and after heavy or long continued rains
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