Show strength tests tests of strength have been made and alie following are given as the average figures for the white race the lifting powers of a youth of seventeen Is pounds in his ten bieth year tills increases to pounds and in the ji rear it reaches its height pounds at the end of the thirty first year the strength begins to decline very slow IT at first iy ay the fortieth year it has decreased 81 pounds and this dimina alon continues until the fiftieth year Is reached wn the figure Is pounds after this period falls more and more rapidly until the weakness of old o 0 ta reached |