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<br />- <br /> <br />. <br /> <br />. <br /> <br />The third line. anu by far the most im~ortant, consists of accounts of occurrences <br />following dozens of demonstrations of the rainmaking technique and supported by <br />statements of a large number of unbiased or skeptical observers, clients in oany <br />cases, and sometimes by official reports of the ':Ieather Bureau. . A huniber of these <br />h/:'.vc 'oeen performed by the California 3lectric Power Co. in the Natershed "hich sup- <br />plies runoff for their reservoirs in the Bishop Creck area. ~~ny others have been <br />performed because of contracts between private rainmaking firms and their clients \-Iho <br />in some cases have been local government bodies or "'ell 'mown agricultural ~ssocia- <br />tions. ,.~t is cited as pertinent evidence is the fact that rainfall in a pre-deter- <br />mined and announced target area immediately follo"ing the technical operations has <br />consistently been much greater than in surrounding territory. <br /> <br />The designated target area may oover as much au several thousand square miles. <br />Scveral generators for the production of silver iodide vapor may be in use on one <br />project. A ~roject, if conducted by a reputable concern, is under the supervision <br />of a trained meteorologist or of a trained technician who has the advice of a meteor- <br />ologist constantly available. Observations are made continually on cloud position <br />and movement, on wind direotion and velocity (both near ground level and in the upper <br />atmosphere) and on updrafts of ~ir et various locations. Because of this, gencrators <br />can be moved quickly from place to Dlace so as to obtain maximum advantage from the <br />changes in conditions that are registered in rapid sequence by the fickle and whimsi- <br />cal nature that sesms to govern weather. Generators now in uss can pour not just <br />billions, but quadrillione, of seed crJstals into the air in a matter of minutes <br />and at an overell cost of only a f~l dollars. <br /> <br />In a groat many cases, target areas have been surrounded by territory which has nor- <br />mally received an amoUL~t of precipitation equal to or greater than than in the pro- <br />ject area itself. Yet the consistency with which rainfall on the ground under con- <br />tract has exceeded that in the surroundin€ areas from two to five fold seems to put <br />a great strain on arg~ent6 that put fO~1ard coincidence as the explanation. Offi- <br />cial re?orts from sta.tions of the U. S. "Ieather Bureau hove Deen available for tested <br />locali ties in ma~' cases. Almost inveriabl,' following rainlllE'.:dng o,?srations by <br />~e,utab1e concsrns, these stations have reoorted precipitation much heavier than <br />normal and much heavier than in the surrounding untested areas. In fact, in many <br />contracted areas. the amount of rain hes broken all ;mo~rn records by such a great <br />margin as to startle the i~~aDitante. <br /> <br /><i' <br />...-I <br />It''J <br />...-I <br /> <br />3ecause of the ",ell kno>rn freaidshness of "Ieather, there undoubtedly are a number of <br />instances of €ree.tl~' increased rabfall at least ?artly due to coincidence right after <br />seeding operations. But bslievers in the ne~' technique certainly have made a strong <br />case against coincidence as the chief determinant by preeenting such a great number <br />of instances that have furnished. evidence on thiB Clost hoc ')ropter hoc pattern. \Ie <br />illustrate by the following e~~')le: <br /> <br />The 'later Resources Development Corporation with headouarters in Pasadena is one of <br />the so-called rainme:dng concerr,s. Ou.r illustration is a digest of a portion of a <br />report made by its president. Dr. Irv~ng Xrick. Dr. Krick formerly was head of the <br />DeDartment of Meteorology at ~~lifornia Institute of Technology p~d also head of the <br />>'eather forecasting unit attached to the armed forces in the ~urcpean Theatre of <br />Operations during "orld. ~'!ar II. <br /> <br />~he com9any had e contr?ct in July, 1950 to produce preci9itation in an area about <br />125 miles square, cOiTIprising the northeastern part of :.le," l.iexico. Contrary to the <br />scheme of things in Ce.lifornia, July in th".t part of 11e"1 ~!exico is normally a month <br />of moderate rainfall averaging from 1.7 inches to 2.6 inches a.t the various stations <br />,.,i thin the area. Prevailing winds at that time of year al'e ,',est to ee.st. Therefore <br />the generators '.'ere Bet up just ou.t.sic.e the "!estern edge of the tarGet area. <br /> <br />- 4- <br />