I n the report of the Smithsonian Institution for 1895there is a very interesting and instructive paper, entitled " Physiological Light," by RaphaelDubois, Professor of General and Comparative Physiology in the faculty of Sciences, at Lyons. The paper is divided into two parts, the first part treating of " Photogenic Organisms," which treats of the various animal and vegetable organisms that have the power of producing light. Part second treats of the "Special Mechanism of the Photogenic Function."
The macrocosm or greater universe is thus imaged in each microcosm, each least portion. But of only one species of microcosm, man, is this comparison in any way perfect, for in man is represented everything which exists throughout the created universe. If this be indeed true we can in no way better understand the creation of a universe or macrocosm than by studying that of the microcosm, man. Each step in the evolution of a human organism must be scientifically the same as a corresponding step in the evolution of that world of which this individual is but a part.