Exploring the great YukonAn adventurous expedition down the great Yukon River, from its source in the British North-west Territory, to its mouth in the territory of Alaska . but this fringe of fallentimber is much greater in quantityand more formidable in aspectthan any found in the temperate fig. 1. zones. I think I can explain this fact to the satisfactionof my readers. Taking fig. 1 on this page as representinga cross-section perpendicular to the trend of a bank of ariver in our own climate, the stumps ss representingtrees which if undermined by the water asfar as c will generally fall in a
Exploring the great YukonAn adventurous expedition down the great Yukon River, from its source in the British North-west Territory, to its mouth in the territory of Alaska . but this fringe of fallentimber is much greater in quantityand more formidable in aspectthan any found in the temperate fig. 1. zones. I think I can explain this fact to the satisfactionof my readers. Taking fig. 1 on this page as representinga cross-section perpendicular to the trend of a bank of ariver in our own climate, the stumps ss representingtrees which if undermined by the water asfar as c will generally fall in alongcd, and carry away a few trees,three at most, then, as theroots of no more than onesuch tree are capable of hold-ing it so as to form an abatisalong the bank, trees so held will lean obliquely downstream and any floating object will merely brush alongon their tips without receiving serious damage. Figure2, above, repre-sents a similarsketch of a cross-section on thebanks of the Yukon, e s p e c - fig. 3. ially along its numerous islands, these banks, as we sawthem, being generally from six to eight feet above thelevel of the water. This is also about the depth to. FIG. 2.
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Keywords: ., bookauthorschwatka, bookcentury1800, bookdecade1890, bookyear1890
