I SHOULD like to direct the attention of Mr. Woolhouse (NATURE, January 20) to the little book “Avogadro and Dalton, the Standing in Chemistry of their Hypotheses” (Edinburgh: W. F. Clay, 1904), in ...

THE progress of chemical theory has been connected in an intimate way with the study of the complexity of molecules. By the introduction of Avogadro's hypothesis the determination of molecular ...

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