PUZZLE OF MYSTERY CORN CIRCLES In the quiet of a Hamnshire field, the phenomenon. of pro cise circles. of flattened corn which has been puzzling scien tists for more than a decade has appeared again. . . The mysterious circle in we wheatfield at the Devil's Punch. bowl, near Winchester, mea- sures 68 feet in diameter and-18 bounded by another ring four feet wide, five feet from the cir cle's outer edge. Over the years, the circles. which appear in several parts of England and overseas, have been said to be caused by visits from space, freak weather con- ditions, druid ceremonies or electro-magnetic fields. Daily Telegraph Londres 7/7/1986