4 A a a a a a " a nl a a a a on iy it Precipitatton Collections Collectton and enalysis of Individual rainfelis or other precipitations have been made at three sites, The first of these stations has been In operation since 1955 at Pittsburgh, Pe., and two others In Westwood, N.J.; The available and Richmond, Cal., were initiated in 1958, dete from these three stations for 1958 are listed In Tables 4, 5, and 6. The results of these analyses have been subject to numerous Interpretations and no additional tlon will be attempted here, lIaterpreta~

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