. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. Michael Lang demonstrating a 1954 Air Lung double-hose regulator made by one of the first diving equipment manufacturers, Northill Company, Inc. of Los Angeles, 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;

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. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. Michael Lang demonstrating a 1954 Air Lung double-hose regulator made by one of the first diving equipment manufacturers, Northill Company, Inc. of Los Angeles, 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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Keywords: ., bookauth, bookauthorsmithsonianinstitutionpress, bookcentury1900