Journal . 5 12-345-071183-673-67 100-00 On some parts of the coast the upper part of the foreshore hasa comparatively large amount of sand, and in places sand-ridgesare to be found at high-water line which have entirely covered theartificially made sea dams. The sea water along the Guianacoast is always discoloured owing to the large amount of materialin suspension in the water. Experiments made showed thatduring calm weather the sea water from 750 to 1,000 ft. seawardof high water mark contained from 20 to 30 grains of suspendedmatter per gallon of water, and during rough weather often, asmuc
Journal . 5 12-345-071183-673-67 100-00 On some parts of the coast the upper part of the foreshore hasa comparatively large amount of sand, and in places sand-ridgesare to be found at high-water line which have entirely covered theartificially made sea dams. The sea water along the Guianacoast is always discoloured owing to the large amount of materialin suspension in the water. Experiments made showed thatduring calm weather the sea water from 750 to 1,000 ft. seawardof high water mark contained from 20 to 30 grains of suspendedmatter per gallon of water, and during rough weather often, asmuch as 100 grains per gallon. The maximum amount found insuspension was close to high-water line during a storm, whenthere were 433 grains of sediment per gallon of water. Therivers flowing from the mainland of South America to the coast ofBritish Guiana bring down practically no material in suspension,and it is probable that the large amount of material found in WINNING OF TIDAL LANDS IN BRITISH GUIANA. 185. Fig. 7. Stone and Timber Wave Screen,
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Keywords: ., bookcentury1800, bookdecade186, bookpublisherlondon, bookyear1861
