Abstract
THE chemical results as to animal in contrast with vegetable ongaic matter in water, support, in general, the conclusions that have been usually drawn as to the source of organic matter, based on the more highly nitrogenous character of that from animal than that from vegetable débris. Still the necessity for caution is shown; e.g. samples containing the refuse of canning tomatoes might have been erroneously thought contaminated with animal matter; others, containing a watery infusion of human fæces, with vegetable matter, &c.
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American Researches On Water Analysis 1 . Nature 27, 231–233 (1883). https://doi.org/10.1038/027231a0
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DOI: https://doi.org/10.1038/027231a0