Abstract
THE author of the notice which appeared in a recent Number of NATURE is probably unaware that a minute analysis of the “water” found in the pitcher of Nepenthes was made a few years since by Dr. Völcker. For full particulars I will refer your correspondent to “Annals and Magazine of Natural History,” 27,4,128, and “Phil. Magazine,” 3,xxxv., 192; but I may perhaps be allowed to give the results of the analysis. My extract is from Liebig and Kopp's “Annual Report, &c.” “The liquid was generally clear and colourless, rarely yellowish, and reddened litmus. That which was collected from different plants gave respectively 0.92, 0.91, 0.87, 0.58, 0.62, and 0.27, per cent. of residue, which contained in 100 parts 38.61 per cent. of organic matter, consisting chiefly of malic acid with a little citric acid, 50.02 of chloride of potassium, 6.36 soda, 2.59 lime, 2.59 magnesia.”
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POCKLINGTON, H. Nepenthes . Nature 3, 148 (1870). https://doi.org/10.1038/003148a0
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DOI: https://doi.org/10.1038/003148a0
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