. Annual report for the year ended June 30 .... United States National Museum. 58 NATIONAL MUSEUM ANNUAL EEPORT, 196 2 V ^. The late Emilio Estrada, center, in helmet, inspecting excavations the Valdivia site on the coast of Ecuador. at block. Numerous pottery sherds collected from Spanish shipwreck sites were cleaned, separated, and partially reconstructed. Experi- ments were continued in an effort to perfect the treatment of old water-soaked wooden objects, using alcohol dehydration techniques and alum, and polyethylene glycol and Arigal impreg-nation. Museum aides John L. Rawls an
. Annual report for the year ended June 30 .... United States National Museum. 58 NATIONAL MUSEUM ANNUAL EEPORT, 196 2 V ^. The late Emilio Estrada, center, in helmet, inspecting excavations the Valdivia site on the coast of Ecuador. at block. Numerous pottery sherds collected from Spanish shipwreck sites were cleaned, separated, and partially reconstructed. Experi- ments were continued in an effort to perfect the treatment of old water-soaked wooden objects, using alcohol dehydration techniques and alum, and polyethylene glycol and Arigal impreg-nation. Museum aides John L. Rawls and Harold W. Ellis continued restor- ing and organizing specimens and graphic items by exhibit groups for installation in the new Museum of History and Technology. Among the significant items restored were the fife rail of the Hartford^ the wheel of the Brooklyn^ and several mid-19th century gangway 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 United States National Museum. [Washington] : Smithsonian Institution
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