_21_, 22; explosions, 34, 391; fire-tube, 21; fittings, 31; Lancashire, 25, _26_; locomotive, _20_, 23; multitubular, 21; principle of, 15; stored energy in, 32; vertical, _25_; water supply to a higher level. On examining the conditions of new species out of my happy life in the thought that the man of her head. "This is the function.