Samuel Butleter began to write "The Way of All Flesh" about the year 1872, and was engaged upon it intermittently until 1884. It is therefore, to a great extent, contemporaneous with "Life and Habit," and may be taken as a practical illustration of the theory of heredity embodied in that book. He did not work at it after 1884, but for various reasons he postponed its publication. He was occupied in other ways, and he professed himself dissatisfied...