. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 50 Ryco quick-fit non-return valves. MAW/AW/AW/* 5mm nylon tubing. Ceromic cylinder. Selected gravel. Bentonite layer. Selected gravel. »- Bentonite layer- Selected gravel 6mm maximum. i- lm$ >. ISO dla. PVC collar and /screw cap assembly. casing. 7 << \ X I ^VAWkV' Base of bore. Figure 29. Borehole salinity monitoring Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations ma
. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 50 Ryco quick-fit non-return valves. MAW/AW/AW/* 5mm nylon tubing. Ceromic cylinder. Selected gravel. Bentonite layer. Selected gravel. »- Bentonite layer- Selected gravel 6mm maximum. i- lm$ >. ISO dla. PVC collar and /screw cap assembly. casing. 7 << \ X I ^VAWkV' Base of bore. Figure 29. Borehole salinity monitoring Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution. Press; National Research Council (U. S. ). Pacific Science Board; Smithsonian Institution; National Museum of Natural History (U. S. ); United States. Bureau of Sport Fisheries and Wildlife. Washington, D. C. : [Smithsonian Press]
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