. Annual report for the year ended June 30 .... United States National Museum. Top: Dr. Wickstead (left) manipulates a fine wire loop to sort plankton organisms on a tray of his own design. Museum technician (center) learns the distinctive characteristics of a benthic specimen from the Gulf of Mexico. Identification cards (right) expedite the process of learning to distinguish the more than 100 major groups of bottom-dwelling t:^.^::,-!^. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and a


. Annual report for the year ended June 30 .... United States National Museum. Top: Dr. Wickstead (left) manipulates a fine wire loop to sort plankton organisms on a tray of his own design. Museum technician (center) learns the distinctive characteristics of a benthic specimen from the Gulf of Mexico. Identification cards (right) expedite the process of learning to distinguish the more than 100 major groups of bottom-dwelling t:^.^::,-!^. 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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