CHAPTER I
INTRODUCTION
To which branch of animals does man belong? To which class and order in that branch? (Animal Biology, pages 125, 193.) There is no other animal species in the same genus or order with man. This shows a wide physical difference between man and other animals, but man's mind isolates him among the other animals still more.
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Fig. 1.—Facial Angles of Caucasian (nearly 90°) and Ethiopian (about 70°). The angle between lines crossing at front of upper jaw near base of nose, one line drawn from most prominent part of forehead, the other through hole of ear. The human species is divided into five varieties or races: 1. Caucasian (Fig. 1). Skin fair, hair wavy, eyes oval. (Europe except Finns and Lapps, Western Asia, America.) 2. Mongolian. Skin yellow, hair straight and black, face flat, nose blunt, almond eyes. (Central Asia, China, Japan, Lapps and Finns of Europe, Eskimos of North America.) 3. Americans. Skin copper red, hair straight, nose straight or arched. (North and South America.) 4. Malay. Skin brown, face flat, hair black. (Australia and Islands of Pacific.) 5. Ethiopian
