Let us pass to the study of animals. I had the wish, some years ago, to procure the best of modern treatises upon physiology. I was directed to the work of Professor Mueller, of Berlin. This book has not lost its value,--for, this very morning, a student of our faculty of sciences came to me to borrow it, by the advice of his masters. Mueller was a great physiologist, and he made an open profession of the Christian religion. Have we not the right to conclude that he believed in God? In France, I could cite more than one name in support of my thesis; I confine myself to a single fact. The attention of the scientific world has very recently been occupied with the discoveries of M. Pasteur. M. Pasteur has ascertained that the decomposition of organized bodies, after death, is effected by the action of small animals almost imperceptible, the germs of which the larger animals carry in themselves, as living preparatives for their interment. The design of Providence reveals itself to his understanding, and he writes: "The immediate elements of living bodies would be in a manner indestructible, if from the beings which God has created were taken away the smallest, and, in appearance, the most useless. Life would thus become impossible, because the return to the atmosphere and to the mineral kingdom of all that has ceased to live would be all at once suspended."[110] In other words: I have studied facts hitherto incompletely observed, and my study has revealed to me a new manifestation of that Divine wisdom of which the universe bears the impression.