“…The reader is directed to the several bibliographic and critical surveys that have recently been published, e.g., Adams (1968), Bennett and Gade (1979), Clark (1982), Cordey-Hayes (1972), Courgeau (1980), DaVanzo (1981), Davis (1974), Golledge (1980), Greenwood (1975), Hagerstrand (1957), Hoffmann-Novotny (1970), Hotelling (1978), Kuznets (1957Kuznets ( -1964, Ledent (1981), Mangalam (1968), Morrison (1973), Mueller (1982), Olsson (1965), Petersen (1978), Petersen and Thomas (1968), Pierson (1973), Price and Sikes (1975), Pryor (1981), Quigley and Weinberg (1977), Ritchey (1976), Shaw (1975), Thomas (1938), Thornthwaite (1934), Weaver and Downing (1976), Welch (1971),…”