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THE PHosPHoREscENT FAcULTY.-The wonderful power of generating and emit ting light, is possessed by some Of the lower animals, and it is sometimes used as a means of defence.

 A lightning bug became entangled in a spide r's web. The spider instantly ads vanced to seize his prey. He began by endeavoring to secure the bugs wings in his tolls. The bug showed no deficiency in courage; but emitted his light in ra- pid flashes. The spider, at each success sive flash, slightly retreated, but quickly returned again to the combat. At length the spider evinced signs of distress; ; he held on to his cords and staggered 10 the wall, against which he rubbed himself, as if desirous of moving something offensive. After while he appeared partially to re. cover, but he lay quiet. In the meantime the bug continued 10 emit his light. F'- nally the web gave way, and the little prisoner escaped.

 The luminous appearance of certain parts of the ocean, a, particular periods. has been ascer;ained to be owing to an infinite number cf small phosphorescent animals with which it is inhabited.

 The phosphorescence continues only during the life of the animals. II the wa ter and animals are ,akeL up in glass vessel they will continue to exhibit the