Evolution of other Bodies in the Universe—The Nebul?—Estimate of the Size of the Great Nebula in Orion—Photograph of that Nebula taken at Lick Observatory—The Dumb-bell Nebula—The Crossley Reflector—The late Professor Keeler—Astonishing Discovery of New Nebul?—120,000 Nebul?—The Continuous Chain from a Fluid Haze of Light to a Star—The Celestial Evolution.