Burbank, that wonderful moulder of plant life, has well expressed this thought, when he says: "All my investigations have led me away from the idea of a dead material universe tossed about by various forces, to that of a universe which is absolutely all force, life, soul, thought, or whatever name we may choose to call it. Every atom, molecule, plant, animal or planet, is only an aggregation of organized unit forces, held in place by stronger forces, thus holding them for a time latent, though teeming with inconceivable power. All life on our planet is, so to speak, just on the outer fringe of this infinite ocean of force. The universe is not half dead, but all alive." Science today is gazing upon a living universe. She has not yet realized the full significance of what she has discovered, and her hands are raised as if to shade her eyes from the unaccustomed glare that is bursting upon her. From the dark cavern of universal dead matter, she has stepped out into the glare of the noon-day sun of a Universe All-Alive even to its smallest and apparently most inert particle. Beginning at Man, the highest form of Life known to us, we may pass rapidly down the scale of animal life, seeing life in full operation at each descending step. Passing from the animal to the vegetable kingdom, we still see Life in full operation, although in lessened degrees of expression. We shall not stop here to review the many manifestations of Life among the forms of plant-life, for we shall have occasion to mention them in our next lesson, but it must be apparent to all that Life is constantly manifesting in the sprouting of seeds; the putting forth of stalk, leaves, blossoms, fruit, etc., and in the enormous manifestation of force and energy in such growth and development. One may see the life force in the plant pressing forth for expression and manifestation, from the first sprouting of the seed, until the last vital action on the part of the mature plant or tree. Besides the vital action observable in the growth and development of plants, we know, of course, that plants sicken and die, and manifest all other attributes of living forms. There is no room for argument about the presence of life in the plant kingdom. But there are other forms of life far below the scale of the plants. There is the world of the bacteria, microbes, infusoria--the groups of cells with a common life--the single cell creatures, down to the Monera, the creatures lower than the single cells--the Things of the slime of the ocean bed.