In conclusion of this part of my subject, I will describe a single combat of a very terrible nature I once witnessed between two little spiders belong-ing to the same species. One had a small web against a wall, and of this web the other coveted possession. After vainly trying by a series of strategic movements to drive out the lawful owner, it rushed on to the web, and the two envenomed httle duellists closed in mortal combat. They did nothing so vulgar and natural as to make use of their falces, and never once actually touched each other, but the fight was none the less deadly. Rapidly revolving about, or leaping over, or passing under, each other, each endeavoured to impede or entangle his adversary, and the dexterity with which each avoided the cunningly thrown snare, trying at the same time to entangle its opponent, was wonderful to see. At length, after this equal battle had raged for some time, one of the combatants made some fatal mistake, and for a moment there occurred a break in his motions; instantly the other perceived his advantage, and began leaping backwards and forwards across his struggling adversary with such rapidity as to confuse the sight, producing the appearance of two spiders attacking a third one lying between them. He then changed his tactics, and began revolving round and round his prisoner, and very soon the poor vanquished wretch--the aggressor, let us hope, in the interests of justice--was closely wrapped in a silvery cocoon, which, unlike the cocoon the caterpillar weaves for itself, was also its winding-sheet.