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<br />In spite of the fact that these are small water- <br />sheds and there is a recording rain gage in each <br />catchment, there are runoff events with no measurable <br />precipitation. There are occasions when the runoff <br />volume exceeded the volume of precipitation. <br /> <br />There are occasions when the S-minute interval <br />used in recording the data was too long. This time <br />interval was much shorter than the data obtained from <br />the Louisville or Texas watersr.eds, It seems that the <br />data for storms whose duration is obviously less than <br />five minutes will have to be discarded. Major storms <br /> <br />last longer than five minutes. It is questionable if <br />data from very small storms will be useful. According <br />to Minshall (1960), the assumption of linearity is <br />questionable for very small storms. <br /> <br />In spite of the difficulties outlined previously, <br />the time resolution of the events and the reliability <br />of the synchronism between rainfall and runoff is be- <br />lieved superior to the Louisville data used by Eagleson <br />or the Texas data used by Van Sickle, Espey, Sayre and <br />Johnson or Dempster. <br /> <br />13 <br />