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<br />
<br />PLATE
<br />I
<br />II
<br />III
<br />IV
<br />V
<br />VI
<br />VII
<br />VIII
<br />
<br />IX
<br />
<br />X
<br />XI
<br />XII
<br />XIII
<br />XIV
<br />XV
<br />XVI
<br />XVII
<br />XVIII
<br />XIX
<br />
<br />xx
<br />
<br />xxI
<br />
<br />XXII
<br />
<br />XXIII
<br />XXIV
<br />XXV
<br />XXVI
<br />
<br />xxVII
<br />
<br />I
<br />II
<br />III
<br />
<br />IV
<br />
<br />,LIST OF PLATES
<br />
<br />Part I
<br />
<br />PAGE
<br />General map showing rainfall penetration stations______followlng page 20
<br />.soil sampling equipmenL___________________________________________ 26
<br />Devil Canyon Plot, showing brush cover and material from shaft.
<br />November, 1928 ____________________________________________________ 29
<br />Variation in moisture content at Devil Canyon Plot. 1928_______________ 35
<br />Variation in moisture content at Devil Canyon Plot. 1929_______________ 38
<br />Variation in moisture content at Devil Canyon Plot, 1930______________ 42
<br />Muscoy Brush Plot J. August, 1930_________________________________ 43
<br />Claremont Tunnel Plot. August, 1930.
<br />A. Cover crop.
<br />B. Soil profile ___________________________________________________ 46
<br />Palmer Canyon Brush Plot. August, 1930.
<br />A. Cover crop.
<br />B. Soil profile ___________________________________________________ 48
<br />Pyle Shaft Plot. August, 1930 _____________________________________ 57
<br />Typical clean cultivated plot and adjacent grass and weed ploL_________ 59
<br />Storage of rainfall in the soil, Plots A-I and A-2, Anaheim Union
<br />Water Company _________________ ________________ ____ --- --- -- ------.- 60
<br />Storage of rainfall in the soil, Plots 0-1 and D-2, Edison avenue ____ 61
<br />Storage of rainfall in the soil, Plots B-1 and E-2, Braundale Acres __ 62
<br />Storage of rainfall in the soil, Plot F, Cucamonga____________________ 62
<br />Storage of rainfall in the soil, Plots G-l and G-2, Glen Avon HelghtB_ 63
<br />Storage of rainfall in the soil, Plots H-l and H-2, Redlands _________ 64
<br />Temescal Creek map _________________________________3011owing page 64
<br />Temescal Creek gaging stations.
<br />A. Control at dam showing six~inch Parshall flume and U. S. Geo-
<br />logical Survey record shelter.
<br />B. Control at bridge showing six-inch Parshall flume and recorder
<br />shelter ______________________________________________________- 66
<br />Temescal Creek swamp tanks.
<br />A. Tank A (right) and Tank B (left), June, 1930.
<br />B. Tank B at Ontario in July, 1930_______________________________ 70
<br />Flow and evaporation-transpiration losses in Temescal Creek, 1929, and
<br />rate of evaporation-transpIration compared to air temperatures at
<br />Ontario, 1930 _____________________________________________________ 71
<br />Transpiration from citrus trees during rainy season, covered plot in
<br />Ebert Grove, February, 1929_________________________________________ 76
<br />'l'ranspiration losses from Navel orange trees, Ebert Grove, 1928-1929__ 77
<br />Evaporation tram bare soil after rain, Ontario_________________________ 94
<br />Evaporation of rain from the soil, Edison avenue, Ontario, 1928-1929____ 95
<br />Interception of rain as determined by weighing and sprinkling a lemon
<br />tree, ~ay. 1930__________________________________________________--- 97
<br />Edison avenue soil drainage plot, August, 1929_________________________ 100
<br />
<br />Part II
<br />Daily records of evaporation from water surfaces, maximum and mini-
<br />mum temperatures ;:I,nd wind movement, Santa Ana Station, 1929-1930__ 11~
<br />Plan of Santa Ana Station, 1929-30___________________________________ 115
<br />placing soil tanks at Santa Ana Station.
<br />A. Cribbing and jack forcing tanks six feet Into the ground, 1928.
<br />B. Soil tanks before backfilling and timbers used in drIving tanks by
<br />impact, 1929.
<br />C. Soil tanks in trench before backfilling, 1929______________________ 118
<br />Soil Tanks at Santa Ana Station, 1929.
<br />A. Board fronts with doorways to buried Mariotte tanks: solI and
<br />evaporation tanks in the foreground.
<br />B. Inner shell of soil tank showing rods supporting bottom plate.
<br />C. Outer shells of eoil tanks, six feet deep_________________________ 120
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<br />(8 )
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