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Show 4819 Swanholm- D 2833 ten to twelve inches with light load. Q In the operation of that boat did you experience any difficulties with the river bed? If so, what were they? A Why, we were frequently delayed in striking sandbars, also in shearing off the propellers in striking submerged rocks close to the shore. Q What about bearings, -- have any trouble with sand in the bearings? A In the operation of a motor that is a source of trouble all the time in the working parts of the motor that were submerged below the water, the propeller blades stirring up the sand and abrasive particles would wear on the bearings, wear off the end of the propeller; I believe it did require the replacement of one propeller blade during that 1926 season. Q Did you make any observation with reference to the changes of the stages of the water of the channel? A Yes. The lowering of the water would tend to force the water into a more definite channel. During the infrequent raises in the river, maybe a matter of a few inches to as much as a foot during this 1926 period, the water would cover the bars; when the bars are covered, it would be almost impossible to find a definite channel. Q From time to time in 1926 did you notice any changes in the channel? A Yes. That refers, I imagine, to our trips up and |