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Cooley's Cyclopædia of Practical Receipts and Collateral Information in the Arts, Manufactures, Professions, and Trades..., Sixth Edition, Volume II

Note 178 — A CYCLOPÆDIA OF PRACTICAL RECEIPTS, &c. VOLUME II (continued 34)

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By many modern chemists hydrogen, the lightest substance in nature, is taken as the standard for the specific gravity of gases and vapours.

Return to A CYCLOPÆDIA OF PRACTICAL RECEIPTS, &c. VOLUME II (continued 34)
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