Amplitude of sound-waves
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Article
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1877
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Elsevier Science
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English
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## 269 per ton of sulphuric acid of sp. gr. 1"840. From 1856 to 1862, the chamber acid contained nitrous acid, and 2'52 grins, of platinum were dissolved per ton of acid at 1"840. From 1862 to 1866, sulphurous acid was present, and the amount of platinum dissolved was 1'05 grms. per ton of acid of