of the wick is in the oil, but it is the upper part that gives the light.""Oh, I think I see," said Norah, "The wick must be something like the cane. I suppose it absorbs the oil, and carries it up to the top, where it burns.""That is right, Norah," said Willie, "And a candle burns in the same way. The heat melts the tallow into a liquid. The wick absorbs the liquid tallow, and carries it up to the top, where it burns."SUMMARY
Porous bodies absorb liquids. Turpentine rises through the pores of the cane and burns at the top. The wicks of the candle and the lamp are porous. The tallow and the oil rise through the pores of the wick and burn at the top.
Lesson 02
Sponge-and its Uses
"Oh, boys," cried Norah, as she rushed into the room, "do come with me at once. Our dear old Ponto has cut his foot in the garden. The poor old fellow is in such pain, and it is bleeding very badly.""All right, Norah," said Fred. "You run and get a sponge and some warm water. Will."In a very short time they were all round their dear old playfellow. Fred bathed the foot with the warm water, while the others stroked him, and tried to make him forget the pain. The foot was, as Norah had said, very badly cut.
