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<br />r, ' ',' <br />u i..J _I.. J'j. . <br /> <br />It is possible to com~ute the distAnce along the canal to the <br /> <br />point at which the water drops to the freezing point. rrom <br /> <br />the logarithmic form <br /> <br />loge <br /> <br />Da - e <br /> <br />Ga - Go <br /> <br />__ MS log <br />x -tb e <br /> <br />MS <br />= fb loge <br /> <br />= <br /> <br />!E.x <br />illS <br /> <br />Ga-O <br />Oa - Go <br /> <br />C/a - eo <br />Oa -6) <br /> <br />At the time of incipient freezing, 0 = 320r and <br /> <br />= MS 1 <br />x32 fb oge <br /> <br />ea - <br /> <br />c9a- <br /> <br />Q <br />o <br /> <br />32 <br /> <br />is the distano~ along the canal at which free sing "tarts. <br /> <br />6 <br />