 | Arthur Thomas Simmons - 1897 - 516 páginas
...feet. Bores. — The conditions necessary for the formation of a bore appear to be three in number. (1) A swiftly flowing river. (2) An extensive bar of sand, dry at low water, except in certain narrow channels kept open by the outgoing stream. (3) The estuary into... | |
 | Arthur Thomas Simmons - 1898 - 508 páginas
...(1) A swiftly flowing river. (2) An extensive bar of sand, dry at low water, except in certain harrow channels kept open by the outgoing stream. (3) The...which the river discharges must be funnel-shaped, with its wide mouth open to receive the tidal wave from the ocean. In the Thames only the third of these... | |
 | Arthur Thomas Simmons, Ernest Stenhouse - 1912 - 456 páginas
...bore. Bores. — The conditions necessary for the formation of a bore appear to be three in number. (1) A swiftly flowing river. (2) An extensive bar of sand, dry at low water, except in certain narrow channels kept open by the outgoing stream. (3) The estuary into... | |
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The 3 following conditions appear to be necessary to create a bore : — • 1. A swiftly flowing river. 2. An extensive bar of sand, dry at low-water, except in certain narrow channels kept open by the outgoing stream. 3. The estuary into which the river... 