Quadrupeds, What They Are and Where Found: A Book of Zoology for Boys

I have been called upon to write illustrative sketches to a series of engravings, designed by an eminent artist. In performing my part of the work I have thrown the Mammalia into twenty-four groups-corresponding more or less to the picture designs-and have dwelt chiefly on the geographical distribution of the animals. The Cetaceae and Vespertilionidae are properly omitted.