Spiders have been observed to get to the Top of a Branch or such like thing, where they exercise this darting of Threads into the Air. After the first Flight, all the time of their sailing on those Threads, they make Locks, still darting forth fresh Supplies of Thread to sport and sail by. _N. B._ Those called Shepherds, or long-legg’d Spiders, are no Spinners. I have seen Spiders, says the Learned Dr. _Hulse_[311], shoot their Webs three Yards long before they begin to sail upon them. So the Learned _Derham_ observes, that with pleasure he had often seen Spiders dart out their Webs, and sail away by the Help thereof. Footnote 311: Ibid. vol. i. p. 363. _AMERICA_ turns out diverse kinds of these araneous Insects: In _Peru_ are Spiders as large as a Man’s Hand, and have Eyes as big as those of Sparrows. In _Brasil_ there is one kind of Spider, whose Skin is rough and black, and whose Sting proves incurable, without immediate Relief. On the other hand, we read of monstrous Spiders in the _Antilles_, whose Eyes are so small and deep in the Head, that they are scarcely visible: They feed on flying Insects, and their Webs are strong enough to catch small Birds[312]. Footnote 312: _Atl. Geog. Amer._ p. 179, 265, 519. _CEYLON_ in the _East-Indies_ produces a long, glittering, and hairy Spider, called _Democulo_, whose Wound is not mortal, but sometimes deprives People of their Senses. There is an Experiment made by Mr. _Leeuwenhoek_, who put a Frog and Spider together into a Glass, and having made the Spider sting the Frog diverse times, the Frog died in about an hour’s time[313]. Footnote 313: _Scaliger Exercit._ in _Boyle_’s _Subtil. Efflu. Philos. Transactions_. Where there is a curious Account how Spiders lay and guard their Eggs. _Derham._ There is another Instance of the Poison of some of them (for all are not poisonous) given by the Learned _Scaliger_, who relates, that in _Gascony_ in _France_, there are Spiders of that Virulency, that if a Man treads upon them to crush them, their Poison will pass thro’ the very Soles of his Shoe[314]. Footnote 314: _Scaliger Exercit._ in _Boyle_’s _Subtil. Efflu. Philos. Transactions_. Where there is a curious Account how Spiders lay and guard their Eggs. _Derham._