. American spiders and their spinningwork. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits . phian web. In the figure (157) the three netteddomes were apparent^ made successively by one spider, and abandonedfor some undiscovered reason. The ordinary web contains only one is probable that the curtain usually found beneath this is the compressedremains of a former dome, above which a new tent is reared. Somethingof the same habit may be seen in certain Orbweavers, who, however, pushthe rejected material to the outer margi
. American spiders and their spinningwork. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits . phian web. In the figure (157) the three netteddomes were apparent^ made successively by one spider, and abandonedfor some undiscovered reason. The ordinary web contains only one is probable that the curtain usually found beneath this is the compressedremains of a former dome, above which a new tent is reared. Somethingof the same habit may be seen in certain Orbweavers, who, however, pushthe rejected material to the outer margins instead of beneath the web. We may trace this interesting analogy from another point in tlie groupof Orbweavers, and find yet further coincidence. The typical orb of the. Fig. 157. The snare of Linj-phia marginata. 168 AMERICAN SPIDERS AND THEIR SPINNINGWORK. Orbitelariffi is vertical, but the corresponding section of the web of the Bas-ilica spider, Fig. 13, d d, might be properly described as horizontal, orrather as a blending of the horizontal with the vertical. In otherLinked words, if a horizontal orb attaclicd at the circumference in theusual way were to be lifted up by a thread fastened in the centre,it would assume the shape of the dome in the web of the Basil-ica spider. In point of fact, this effect might be produced from the charac-teristic snares of those sjiecies which have been dcscril)cd in the opening ofthis chapter. If, for example, one were to fasten a thread to the centralpoint of the orb of Tetragnatha or the Orchard spider, and gradually liftit until the orb should assume the dome shape, he would have a snare verystrongly resembling that of Basilica. The principal difference would be (hatthe apron of intersecting lines beneath the
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