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“I notice that, in the lecture â€� which Prof. Lowry gave recently, in Paris â€� he brought forward certain freak formulae for tartaric acid, in which hydrogen figures as bigamist â€� I may say, he but follows the loose example set by certain Uesanians, especially one G. N. Lewis, a Californian thermodynamiter, who has chosen to disregard the fundamental canons of chemistry—for no obvious reason other than that of indulging in premature speculation upon electrons as the cause of valencyâ€�”