Show RODS GIVE NO protection french vine growers find thoy they derive no benefit from metal rods they erected the vine growing region of the gl ronde lu france lias has boon beer quite extend lel lIely cly equipped in recent years with tall metal rods similar to lightning rods known as pnra para greles or electric ning Nia aras garas and alleged Zill egea to afford protect protection iou from hailstorks hailstorms hail ball storms A careful study of the functioning of allese i lods has i evently lecent ly been published by 11 C P comity of the university of boibeaux Boi deaux the statistics presented show that lint numerous have occurred ili hi the of nearly nil all the hie rods moreover according to M courty there lias has b loon 9 oil no do obvious change le in the character of these storms since the erection of the rods uis ills article points out some of tile principal reasons for the erroneous conclusions conclusion that others have drawn in favor of them for ex example tile lie fact that normally only one thunderstorm in live Is attended by hall that the area over which hall falls Is normally veri ver small in comparison with itil that covered by tile the and hall tends to occur in scattered patches or narrow hands bands and lastly that a di district in which hall hail has fallen for two or three yeni q in succession often re rc hilris free arnn hall for years regardless gard less of tl ti installation of liall hall pro teching derler |