The unique purpose of geography is to seek comprehension of the variable character of areas in terms of all the interrelated features which together … - Richard Hartshorne

Geographers and agricultural economists have become increasingly interested in recent years in studying the associations of crops and livestock in different types of agriculture, in contrast to the separate consideration of individual crops or products.

Geography is that discipline that seeks to describe and interpret the variable character from place to place of the earth as the world of man.

We may once again modify our statement of the purpose of geography to read: the study that seeks to provide scientific description of the earth as the world of man.