Geography is concerned to provide accurate, orderly, and rational description and interpretation of the variable character of the earth surface. - Richard Hartshorne

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.

The core study of geography is the study of places, that is the analysis of the significant differences that distinguish the various areas of the world from each other. Among the differences that are significant to this areal differentiation, one of the more obvious are differences in landforms; one of the least obvious to the eye, but nonetheless important in molding the character of areas, are the differences in their political organization. In pursuing these and other separate topics, geographers "radiate out in diverse directions" "and for various distances, toward the cores of other disciplines." As long as they realise where they are in reference to the central core, they may hope to understand each other purposes.

To be sure, the moment the study passes beyond bare description the student must leave the landscape itself, must go beneath it, even to state what its form represents — to translate the outer foliage of a forest into the forest, the outer surface of buildings into different kinds of buildings, etc.... Our interest in houses, factories, and forests cannot be confined to their surface form; only in the limited field of aesthetic geography could such a restriction be justified. Our very use of such words as house, barn, factory, office building, etc., indicates that we are primarily concerned with the internal functions within these structures, the external form is a secondary aspect which we use simply as a handy means to detect the internal function - and should use only insofar as it is a reliable means for that purpose.