GEOGRAPHY

The science of the earth and life, especially the description of land, sea, air, and the distribution of plant and animal life, including man and his industries, with reference to the mutual relations among these diverse elements. As general areas of study, geography is divided into: (1) Mathematical Geography: deals with the figure and motion of the earth, of its seasons, tides, etc., of its measurement, and of its representation on maps and charts by various methods of projection; (2) Physical Geography: deals with the exterior physical features and changes of the earth's land, water, and air; (3) Biological Geography: has to do with the relation of living things to their physical environment; and (4) Commercial Geography: deals with commodities, their place of origin, paths of transactions, etc.