Weather and Climate Modification - NSF

www.nsf.gov

but also to reinforce the tribal reli­ gious beliefs and opinions which maintain social unity. Through ancient and modern times many methods have been proposed and attempted to induce or to aid rainfall. Two U. S. Government pat­ ents on methods of rainmaking were issued before the turn of the 20th century based, respectively, upon the

  Climate, Modification, Lire, Iugo, Climate modification, 173 gious