Abstract
IN an earlier investigation1 it has been shown by the use of isotopically labelled compounds that the wall of the Malpighian tubule of the stick insect is permeable to urea and to certain sugars and amino-acids. At that time labelled inulin was not available.
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Ramsay, J. A., J. Exp. Biol., 35, 871 (1958).
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RAMSAY, J., RIEGEL, J. Excretion of Inulin by Malpighian Tubules. Nature 191, 1115 (1961). https://doi.org/10.1038/1911115a0
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DOI: https://doi.org/10.1038/1911115a0
