. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. VANADIUM UPTAKE BY ASCIDIANS 91 6 rfr FIGURE 3. Aquarium used for pumping rate studies of ascidians. was maintained and the water level was kept constant 1>y means of drains placed at the top of the aquarium. A Pyrex glass tube of 4 mm. outer diameter with a 6 mm. outer diameter bulb at one end was inserted in the opened exhale syphon of the ascidian with great care to avoid injury to the animal. The animals soon re- laxed with such an arrangement. The ascidian, with inserted tube, was then placed in the aquarium and the


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. VANADIUM UPTAKE BY ASCIDIANS 91 6 rfr FIGURE 3. Aquarium used for pumping rate studies of ascidians. was maintained and the water level was kept constant 1>y means of drains placed at the top of the aquarium. A Pyrex glass tube of 4 mm. outer diameter with a 6 mm. outer diameter bulb at one end was inserted in the opened exhale syphon of the ascidian with great care to avoid injury to the animal. The animals soon re- laxed with such an arrangement. The ascidian, with inserted tube, was then placed in the aquarium and the tube connected to a second glass tube which entered the aquarium through a rubber gasket and discharged the water outside of the aquarium at the same level as the drains. There was therefore no hydrostatic head to aid ' — MA MANTLE w BRANCHIAL BASKET. LUMEN OF GUT OVARY -MUCUS FIGURE 4. Radioautograph of Ascidia ccrutodcs used in Experiment 9. Concentration of vanadium is seen in ovary, gut wall, and in the mucus in the gut. Fifteen day 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory


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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology