Scientific American Supplement, No. 446, July 19, 1884 by Various
page 78 of 142 (54%)
page 78 of 142 (54%)
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Name of article a quarter of a lb.
examined. Salmon none. Lobsters none. Oysters 0.004 Sardines none. Lobster paste none. Salmon paste none. Bloater paste 0.002 Potted beef none. Potted tongue none. Potted "Strasbourg" none. Potted ham 0.002 Luncheon tongue 0.003 Apricots 0.007 Pears 0.003 Tomatoes 0.007 Peaches 0.004 These proportions of metal are, I say, undeserving of serious notice. I question whether they represent more than the amounts of tin we periodically wear off tin saucepans in preparing food--a month ago I found a trace of tin in water which had been boiled in a tin kettle--or the silver we wear off our forks and spoons. There can be little doubt that we annually pass through our systems a sensible amount of such metals, metallic compounds, and other substances that do not come under the denomination of food; but there is no evidence that they ever did or are ever likely to do harm or occasion us the slightest inconvenience. Harm is far more likely to come to us from noxious gases in the air we |
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