It was some 38 years ago that Sir William Crookes, eminent British scientist, in the first edition of his book, ""The Wheat Problem" predicted theinevitability of a long-run increase in the price of wheat. This grim prospect arose, he contended, due to the rapidlY diminishing supply ofavailable wheat land, which, according to him, would soon be inadequate to provide for the world's needs. Within an appreciable distance, hepredicted a scarcity of this vital foodstuff. [...