| OCR Text |
Show 547 in attempting to avoid those rocks is the danger in the rapids . That is his understanding . . A stream ( would woidd ) have considerable rapids in it with ten feet to the mile . Assuming that the river was entirely ( unob- unob ) structed by rocks or sand bars , there is no ( particu particu- particu ) lar difficulty in navigating in having a boat go down the ( stream strearn ) , unless you ( Lave have ) some awful curves that would throw you up against the bank . The chief dangers and difficulties arise from the combination of a drop in velocity with the ( obstruc obstruc- obstruc ) tions in the river bed . ( ( B R ) . 1872-1875 . ) Sand bars are designated . on the topographic map in some places , and referring to Sheet D , Page 4 , of Compl . Exhibit 10 , at about mile ( forty-four fortyfour ) and also between mile ( forty-four fortyfour ) and ( forty-five fortyfive ) , the sand bars are indicated by the symbol along the edge of the water . ( ( B R ) . 1876 . ) It is shown adjacent to the alluvial plane , and when the river is high it is probably submerged . Anybody coming down the river at the time the map was made , and seeing the map , would have no obstruction at all , although the influence of the sand bar might extend out into the water , as it probably does , but it is not shown on the ( map 3nap ) as only the exposed portions of a sand bar ( would -would would ) have shown at the time the ( topographer topograpber ) went through there . ( ( B R ) . 1877 . ) On Page 6 , Sheet F , , of Compl . Exhibit 10 , at miles 60 and 68 , sand bars are shown out in the channel of the river |
