Who will say that all these have not assured him years of life? Well, but did all this increase of weight and size actually change the shape of the chest, for instance, and take the hollowness out of it? That is exactly what it did; and Maclaren has a drawing of the same chest at the beginning and end of the year, showing an increase in the breadth, depth, and fulness of the lower chest which makes it seem almost impossible that it could have belonged to the same person. It will be remembered that Maclaren claimed[I] that just such a readjustment of the osseous framework would result. Is not this, then, remaking a man? Instead of a cramped stomach, half-used lungs, a thin, scrawny, caved-in make, poor pipe-stems of legs, with arms to match, almost every one under forty, at least, can in a very few months, by means of a series of exercises, change those same slender legs, those puny arms, that flat chest, that slim neck, and metamorphose their owner into a well-built, self-sufficient, vigorous man, fitter a hundred times for severe in-door or out-door life, for the quiet plodding at the desk, or the stormy days and nights of the ocean or the bivouac. Who is going to do better brain-work: he whose brain is steadily fed with vigorous, rich blood, made by machinery kept constantly in excellent order, never cramped, aided daily by judicious and vigorous exercise, tending directly to rest and build him up? or he who overworks his brain, gets it once clogged with blood, and, for many hours of the day, keeps it clogged, who does nothing to draw the blood out of his brain for awhile and put more of it in the muscles, who, perhaps, in the very midst of his work, rushes out, dashes down a full meal, and hurries back to work, and at once sets his brain to doing well-nigh its utmost? Well, but is not the work which will effect such swift changes very severe, and so a hazardous one to attempt? That is just what it is not. Is there anything very formidable in wooden dumb-bells weighing only two and a half pounds each, or clubs of three and a half-pounds, or pulley-weights of from ten to fifteen pounds? or is any great danger likely to result from their use? And yet they were Sargent's weapons with his Bowdoin two hundred.[J] Nothing in Maclaren's work, so far as he points out what it is, is nearly so dangerous as a sudden run to boat or train, taken by one all out of the way of running, perhaps who has never learned. There a heart unused to swift work is suddenly forced to beat at a tremendous rate, lungs ordinarily half-used are strained to their utmost, and all without one jot of preparation.