. Deep-ocean biodeterioration of materials. Materials; Marine sediments. Figure 7. Hydroid growth on thimble and polypropylene Figure 8. Hydroid growth on the bottom section of an aluminum pinger casing. 11. 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 Muraoka, James S; Naval Civil Engineering Laboratory (Port Hueneme, Calif. ). Port Hueneme, Calif. : U. S. Naval Civil Engineering Laboratory

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Keywords: ., bo, bookcentury1900, bookcollectionbiodiversity, bookleafnumber15