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will be found innumerable tunnels formed by 100,000 to the acre, and in especially rich ground in New Zealand it was estimated that there were 348,840 in a single acre. This vast body of worms treating to greater depths during the day and their tunnels constitute a system of irrigation and ventilation. Rain, instead of running off, its way below the surface. But this is a very small part of the work accomplished. Worms are continually swallowing the earth and deposit¬ ing it at the surface, and working it over and over. Darwin states that the vegetable mold material to the surface, but they drag vast quan¬ tities of leaves and other matter down that serve to enrich the soil and render it capable of pro¬ ducing larger crops. Some worms are a foot iu length. Their bodies are formed of a large num¬ their tiny feet, snakes by means of their scales, and worms by means of their bristles. Their bodies are very elastic. The worm pushes for¬ ward its head, the bristles in the front part of its body take hold of the ground, and the rest of the body is then pulled along. In addition to the large variety of elongated water animals, very the many of them dwelling in the ocean, also to but numerous internal parasites, some of which dwell in the human body. (See Tape.) in Norfolk.] Wool twisted into thread used for knitting stockings. Long yarn is made by draw the ing, gilling, and combing. Short wools are first carpet-yarns or knitting-yarns is carded only.