1891. This work is founded upon the theory of the progression of species and in accordance with the genetic revelation, scriptural truths, and the harmony of nature; with an introduction describing the geological ages, changes in the earth's crusts, fossil remains of extinct animals, and monsters of the ancient seas, replete with anecdote, incident and adventure, illustrative of the habits of the animals described, abounding with thrilling experiences, wonderful discovery, exciting episodes and descriptions of the marvelous curiosities of nature in all parts of the globe. Embellished with over 1500 elegant engravings illustrating the animals of the earth in their natural condition.