CONTENTS — PART I 13 



Table Page 



30. Summary by months of mean t(^mperatures, wind movement, evaporation, 



and consumptive use of water from tule tanks Nos. 1, 2, ami 3, and use 

 of water from tule tank No. 3 expressed in per cent of evaporation at 

 Victorville station 87 



31. Classification of trees between middle and lower controls in Coldwater 



C^an.Non 90 



32. Cla.ssilication of trees between upper and middle controls in Ooldwater 



Canyon 92 



33. Comparison of estimated loss by evaporation from stream and total loss 



between middle and lower controls in Coldwater Canyon, September 

 S-14, 1932 101 



34. Daily maximum and minimum temperatures in Coldwater Canyon of the air, 



the stream, and the water in the evaporation pan, September 8-14, 1932 101 



35. Daily maximum and minimum discharges at middle and lower controls in 



Coldwater Canyon, August 1 to October 17, 1931 105 



3G. Daily maximum and minimum discharges at each control in Coldwater 



Canyon, June 24 to November 3, 1932 106-107 



37. Daily loss of water from the stream between middle and lower controls 



in Coldwater Canyon, August 1 to October 17, 1931 110 



38. Daily loss of water from the stream between middle and branch controls 



and lower control in Coldwater Canyon, June 25 to November 2, 1932 111 



39. Daily loss of water from the stream between the upper and middle controls 



in Coldwater Canyon, July 15 to November 2, 1932 112 



40. Daily loss of water from the stream indicated by dips in discharge curve 



at middle control in Coldwater Canyon, August i to October 17, 1931 114 



41. Daily loss of water from the stream indicated by dips in discharge curve at 



upper control in Coldwater Canyon, July 15 to November 2, 1932 115 



42. Monthly mean maximum and minimum temperatures at the mouth of Cold- 



water Canyon, at Alpine, and at San Bernardino, June to October, 1931 

 and 1932 117 



43. Loss of water from atmometers at Coldwater Canyon, July 18 to October 



24, 1932 117 



44. Com])arison of loss of water from atmometers, evaporimeter, and loss of 



water between middle and lower controls, September 8-14, 1932 119 



45. Precipitation 1931-32 season 120 



46. Monthly evafporation records at cooperative key station at Baldwin Park, 



California, 1932-1933 ___— 123 



47. Monthly evaporation records at Santa Ana, California, 1929—1932. Observed 



by the Bureau of Agricultural Engineering, U. S. Department of Agri- 

 culture 125 



48. Monthly evaporation records at San .Bernardino, California, 1929-1932. 



Observed by the Bureau of Agricultural Engineering, U. S. Department of 

 Agriculture 126 



49. Monthly evaporation records at Prado, California, 1930-1933. Observed 



by the Bureau of Agricultural Engineering, U. S. Department of Agri- 

 culture 127 



50. Monthly evaporation records at Ontario, California, 19,28-1931. Observed 



by the Bureau of Agricultural Engineering, U. S. Department of Agri- 

 culture 127 



51. Monthly evaporation records at Victorville, California, 1931-1933. Observed 



by the Bureau of Agricultural Engineering, U. S. Department of Agri- 

 culture 128 



52. Monthly evaporation records near Pomona, California, 1903-1905. Observed 



by the Office of Experiment Stations, U. S. Department of Agriculture 128 



53. Monthly evaporation records at Chula Vista, California, 1918-1933. Observed 



by the Weather Bureau, U. S. Department of Agriculture 129 



54. Monthly wind movement at Chula Vista, California, 1918-1930. Observed 



by the Weather Bureau, U. S. Department of Agriculture 130 



55. Monthly evaporation records at Riverside, California, 1924-1933. Observed 



by the Citrus Experiment Station, University of California 131 



56. Monthly evaporation records at South Haiwee Reservoir, California, 1924— 



1932. Observed by Bureau of Water Works and Supply, City of Los 

 Angeles 132 



57. Monthly evaporation records at Fairmont Reservoir, California, 1923-1932. 



Observed by Bureau of Water W^orks and Supply, City of Los Angeles. J 132 



58. Monthly evaporation records at Silver Lake Reservoir, California, 1930- 



1933. Observed by Bureau of Water Works and Supply, City of Los Angeles_ 133 



59. Monthly evaporation records at lower Fernando Reservoir, Callf<jrnia, 1930- 



1933. Observed by Bureau of Water Works and Supply, City of Los Angeles, 133 



60. Monthly evaporation records at Chatsworth Reservoir, California, 1931-1933. 



Observed by Bureau of Water Works and Supply, City of Los Angeles 134 



61. Mt)nthly evaporation records at Encino Reservoir, California, 1930-1933. 



Observed by Bureau of Water Works and Supply, City of I^o.s .\ngeles 134 



