OCR Text |
Show There are a good many salt-water cataracts in existence. They may be found in Norway, Southern South-ern Chile and British Columbia, where narrow fords, or arms of the sea, are obstructed by barriers bar-riers of rock. The rising tide flows over and filters through such reefs into the great natural reservoirs reser-voirs beyond, but the water is held back at the ebb until it breaks over the obstruction in an irresistible ir-resistible torrent. Most curious of all is the waterfall water-fall at Canoe Passage, where the island of Vancouver Van-couver approaches the British Columbia mainland. Here the flood tide from the Gulf of Georgia to the southward is held back at a narrow cleft between J two islands until it pours over in a boiling cascade 18 feet high, with perhaps double the volume of the Rhine. At the turn of the tide, however, the waters from the north rush back into the gulf, producing a cascade of equal height and volume. The waterfall actually flows both ways. |