Aldrovandus in his book on animals—not the “Monstrorum Historia,” but the volume that treats of matter-of-fact creatures—deals very fully with his subject. The Lion stands first, and our readers will gather some notion of the fulness of the treatment when we state that the royal beast takes up sixty-three folio pages. The book is written wholly in Latin, and the various details are arranged in sections. Amongst these we find “Descriptio, Anatomica, Differentiæ, Locvs, Natvra, Mores, Magnanimitas, Vox, Sympathia et Antipathia, Historica, Mystica et allegorica, Hieroglyphica, Moralia, Nvmismata, Insignia Gentilitia et Militaria, Simvlacra statvæ, Fabvlosa, Proverbia, Vsvs in Medicina, Vsvs in Lvdis et Trivmphis, Vsvs in Venatione et in Bello.” Even this does not exhaust the exceedingly comprehensive treatment, though amply sufficient to illustrate it. The leopard, lynx, dog, and other beasts are in proportion as fully treated of, though the subjects of the sections of course vary; thus in the dog we find much information under the heading Fidelitas and Amor, sections that would be entirely out of place in the description of the wolf. The Aldrovandus picture of the lion is rather a poor one, while the tiger is very fairly good, and the wolf is capital. It is rather curious too that the hippopotamus, the first living specimen of which, as far as we know, came to Europe over two hundred years after the publication of the book in question, is represented by very fair figures, by which it can readily be identified. There are three of these altogether, and one of them has seized a crocodile by the tail. Several of the beasts are also given in skeleton form, thus we have the osteology of the wolf, squirrel, mole, and many others carefully rendered. The effect is sometimes rather quaint, thus, for instance, the skeleton of the hare is given, and the creature in this osseous condition is represented as gnawing a plant. The mole is figured with very conspicuous eyes. Any plant that can be at all associated with an animal is always introduced, thus we have a very good drawing of the rabbit nibbling clover, and the legend appended “cuniculus cinereus cum trifolio pratensi, quo maxime delectatus,” a statement that many a luckless farmer would very heartily endorse; then we have the weasel standing by a plant of rue, and the legend “qua omnes mustelæ adversus serpentes se defendunt,” in allusion to the old belief that a weasel well fortified with rue was able to wage successful war against venomous serpents. Many kinds of dogs are shown, the greyhound, the water spaniel, the poodle with his collar, and so forth; one, to show his fidelity to his master, carries two keys in his mouth, while another is termed “canis bellicosus,” and certainly looks the character.