William WarntzWilliam Warntz was an American mathematical geographer based at the Harvard Laboratory for Computer Graphics and Spatial Analysis. He was a "pioneer in mathematical approaches to spatial analysis".LifeWarntz studied economics at the University of Pennsylvania, gaining a PhD there. His papers are held at Cornell University Library.WorksToward a geography of price; a study in geo-econometrics, 1959Geography now and then: some notes on the history of academic geography in the United States, 1964Geographers and what they do, 1964Macrogeography and income fronts, 1965Breakthroughs in geography, 1971