"His work on the metaleptic action of upon organic substances eventually effected the overthrow of the electro-chemical theory of Berzelius and led to the theory of types, which, in the hands of Williamson, Laurent, Gerhardt, and Odling, was of great service in explaining the analogies and relationships of whole groups of organic compounds."
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Note: According to Dumas in Recherches de Chimie organique, p. 545-549, "[C]hlorine possesses the singular power of removing the hydrogen of certain bodies, replacing it atom for atom. This law of nature, this law or theory of substitutions... I propose to call... metalepsy, from μετάληψις, which expresses... that the body... has taken one element in place of another, chlorine in place of hydrogen, for example. Thus is formed by substitution, or by metalepsy; it is one of the maleptic products o
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History of Chemistry (Thorpe)
History of Chemistry by Sir was written in 2 volumes: Vol. I. From the Earliest Times to the Middle of the Nineteenth Century (1909); and Vol. II. From 1850 to 1910 (1910).
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