Born-Digital or AnalogAnalogTranscriptKrick, Irving P. Berthoud ski area signs cloud seeding agreement. National. Skiing v.9 #4 p.4 Dec.15,195 Cloud seeding over Berthoud ski area apparent success. Nat'l skiing v.9 #6, Jan. 15, 1957 p.13 Speaks at Senate hearing. Post March 27, 1957 p.28 c.lCollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
