Letters to the Editor

Browder J Littlejohn C Young D , 1976 South Florida: Seeking a Balance of Man and Nature (Center for Wetlands, University of Florida, Gainesville, Fa)

Hanson N , 1972 Observation and Explanation: A Guide to Philosophy of Science (Allen and Unwin, London)

Kain J , 1975 “Implications of declining metropolitan population on housing markets” in Post-Industrial America: Metropolitan Decline and Inter-Regional Job Shifts Eds Sternlieb G Hughes J , (Center for Urban Policy Research, Rutgers University, New Brunswick, NJ), pp 221–227

Katouzian M , 1974 “Scientific method and positive economics” Scottish Journal of Political Economy 21 279–287

Tregarthen T D , 1977 “If cities are so great, why are people leaving? A response to Vining and Kontuly” Environment and Planning A 9 1421–1422

Papageorgiou G J Mullally H , 1976 “Urban residential analysis: 2. Spatial consumer equilibrium” Environment and Planning A 8 489–506

Pines D , 1975 “On the spatial distribution of households according to income” Economic Geography 51 142–149