fishway more attrac-tive to the salmon, a side channel, which lies nearly hori-zontally on top of the lower part of the way, has beenconstructed to increase the water; to keep the waterfrom overflowing during a flood the walls are madeconsiderably higher at the mouth, where they are nono less than… … FISHWAYS ON THE RIVER SIRE. bottom 089 meter square. The principal dam at thetop is fitted out with a trap door which can be openedand closed at pleasure. It has been seen that the sal-mon can now pass the fishway without any difficulty,notwithstanding that some improvements, to makethe fishway…
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