. The earth and its inhabitants .. . V/est oF Gr, Depllis Oto 5 Fathoms. 5 Fathoms and upwards. 12 Miles. length of 170 miles, of which 140 of open navigation through the lake, and not more than '30 through ship canals. We are assured that vessels of the heaviest draught will take only 30 hours to pass from ocean to ocean, and that the cutting will admit 32 such vessels per day, or 11,680, of about 12,000,000 tons, a year. The San Juan discharges a volume sufficient for hundreds of canals, but its course is too shifting, its current too irregular and too charged with alluvia to allow of its be
. The earth and its inhabitants .. . V/est oF Gr, Depllis Oto 5 Fathoms. 5 Fathoms and upwards. 12 Miles. length of 170 miles, of which 140 of open navigation through the lake, and not more than '30 through ship canals. We are assured that vessels of the heaviest draught will take only 30 hours to pass from ocean to ocean, and that the cutting will admit 32 such vessels per day, or 11,680, of about 12,000,000 tons, a year. The San Juan discharges a volume sufficient for hundreds of canals, but its course is too shifting, its current too irregular and too charged with alluvia to allow of its being canalised and adapted for the navigation of large vessels. Hence it will be necessary to keep the canal quite distinct from the river through- out its lower course, where it receives the great tributaries from Costa Rica. This cuttuig, joining the river in its tranquil upper course, will be supplied with three locks, each 550 feet long, by means of which the vessels will be brought to the level of the lake, which stands over 110 feet above the Atlantic at low water. It
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