in another manner. The two hind-legs, with a quick
alternate action, draw it from the wallet and let it go.
On returning to her starting-point, at a height of six feet or more,
the Spider is now in possession of a double line, bent into a loop and
floating loosely in a current of air. She fixes her end where it suits
her and waits until the other end, wafted by the wind, has fastened its
loop to the adjacent twigs.
Feeling her thread fixed, the Epeira runs along it repeatedly, from end
to end, adding a fibre to it on each journey. Whether I help or not,
this forms the "suspension cable," the main piece of the framework. I
call it a cable, in spite of its extreme thinness, because of its
structure. It looks as though it were single, but, at the two ends, it
is seen to divide and spread, tuft-wise, into numerous constituent
parts, which are the product of as many crossings. These diverging
fibres, with their several contact-points, increase the steadiness of
the two extremities.
The suspension-cable is incomparably stronger than the rest of the work
and lasts for an indefinite time. The web is generally shattered after
the night's hunting and is nearly always rewoven on the following
evening. After the removal of the wreckage, it is made all over again,
on the same site, cleared of everything except the cable from which the
new network is to hang.
Once the cable is laid, in this way or in that, the Spider is in
possession of a base that allows her to approach or withdraw from the
leafy piers at will. From the height of the cable she lets herself slip
to a slight depth, varying the points of her fall. In this way she
obtains, to right and left, a few slanting cross-bars, connecting the
cable with the branches.
These cross-bars, in their turn, support others in ever changing
directions. When there are enough of them, the Epeira need no longer
resort to falls in order to extract her threads; she goes from one cord
to the next, always wire-drawing with her hind-legs. This results in a
combination of straight lines owning no order, save that they are kept
in one nearly perpendicular plane. Thus is marked out a very irregular
polygonal area, wherein the web, itself a work of magnificent
regularity, shall presently be woven.
In the lower part of the web, starting from the centre, a wide opaque
ribbon descends zigzag-wise across the radii. This is the Epeira's
trade-mark, the flourish of an artist initialling his cr
|