Most. geologists of any note have, in a greater or less degree, adupted it. Dr. Mantell gives us representations. of nebule, in a variety of stages of condensation, at {he commencement of one of his works on the'science. ---Dr. Buckland tells us, in one of the Bridgewater Treatises, that "the nebular hypothesis offers the most simple, and, therefore, the most probable. theory respecting the first condition of the material elements that compose our solar system." (Vol. }.p. se 'Phere are other parts of their writings that woul strongly tempt us to suppose, had it not been for 'the recent correspondence, that, to a great extent, they also, at least up to a very recent' period, had agreed with the author of the " Vestiges" even in the theory of the progressive development of animal and vegetable life. But seeing they have now written so unmeasuredly, that they thoroughly repudiate the doctrines of the book, we are compelled to assume we have been wrong, though their works are befure us,