This July 31, 1972 newsletter written by Henry Lansford describes the last week of field operations for the 1972 season, which included two cloud seeding days and two research days. There was also a tracer experiment performed by scientists from Battelle Northwest Laboratories in which various me... Show moreThis July 31, 1972 newsletter written by Henry Lansford describes the last week of field operations for the 1972 season, which included two cloud seeding days and two research days. There was also a tracer experiment performed by scientists from Battelle Northwest Laboratories in which various metals were dispensed from an aircraft to study how seeding materials move through the atmosphere. Show less
