of study led to some very remarkable results. Had it influenced Cuvier as it previously had zoologists, he would have still become the most accomplished and important naturalist of this century. It would have been said, as it may well be, that he established the study of animals on a firm basis, and that his natural classification has lasted, because he considered not only the outsides of animals, but also the importance of their most peculiar organs, in arranging them into groups, or separating them from others. But Cuvier had seen and studied the bones and skulls of animals which had been dug out of the earth in a mineralized condition. The strata at Montmartre, near Paris, had yielded a great number of bones, which presented some resemblances to those of animals still living but which were clearly not the bones of any existing genera or species. Comparative anatomy was made to connect the past and present animals, and to indicate the possibility of all the past and present creation being placed in one great classification. As Cuvier progressed in this study, he endeavoured to restore, and with considerable success, the extinct animal’s shape, to discover its habits and method of life, and to find out its nearest modern ally. Palæontology, or the study of extinct animals, is under the greatest obligations to this great Frenchman, and it may be called the zoology of the past ages of the earth. He did not, however, forget his one great desire, which was to form a perfect book on comparative anatomy, and one in which all animals would find a place, called “La Règne Animal.” (The animal kingdom.)