The author oi the " Yestiges" is of opinion, that our system was made at one fiat of Divine will, and that it was, at the same time, essentially embued with the elements of a// those changes that have subsequently taken place; or, in other words, that it is strictly in accordance with the plan of the almighty Architect, that they should arise ab intra. The geologists, on their part say, that although the elementary Fae of the system might be made at one fiat of the Divine will, and also admitting, that some geological changes do take place ab intra, yet the more important ones, as the creation of various fete of plants and snimals, have been the result of repeated interpositions of the Deity, and are necessarily ad extra. :