Glow-Worm. It is said that the male glow-worm emits, in a slight degree, a phosphorescent light, - but it is chiefly the female from which the brilliant light proceeds, and which we so often see on banks, beneath hedges, and in various other situations. The light comes from the under-part of the abdomen. It appears that the animal has the power of varying its intensity. Glow-worms will live a long time in vacuo, and in different kinds of gases, - the nitrous acid muriatic and sulphureous gases ex-cepted, for in these they soon expire