Show population in terms of water according to W J mcgee the possible pot population ot of our country ought to be measured not according to the amount of land we possess but according to the amount of 0 water in other livit words als lo 10 ill the amount of rainfall by his bis estimate the country fa can ft comfortably alip support port one person san to five aare teet of walea ran one e toot of water spread over five acres surface now low the annual rainfall of mainland united states the sole 0 original r source of our fresh waters Is barely acre feet it av averages hardly two and one half teel thirty inches over our acres so our greatest possible population measured by our highest standards of primary production would not exceed a 4 number which at the current rate vit of increase will be reached in three centuries or when when the span since ahn landing at jamestown Is doubled worlds work |