. The future water supply of San Francisco; a report to the Honorable the secretary of the interior and the Advisory board of engineers of the United States army . OS-<9 a9-/tp MASS D/AG/=^AM 63year /hr/oc/./hc/i/c/Ar^ ^^jserA/o/7jee/oCa^u =£ « /Peservo/r- ^r///co/ Per/be/-AS97-a^ /o /SO<-S ess S&-70 B 3 s^aooo Ifi-irW-.^^^^^^^^ Plate 6 LONGEST CYCLE OF DRY YEARS OCCURRED DURING LAST 23 YEARS. MEASUREMENTS OFSTREAM FLOW IN THE ALAMEDA SYSTEM COVER THIS PERIOD. 38 i 5 i 1 % 1 V 1 5l ^^ ^^ ? ^ 1 ^ ^ N 1

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Keywords: ., bookcentury1900, bookdecade, booksubjectwatersupply, bookyear1912