Excerpt from Opuscules de Physique

Black célèbre physicien anglais, ayant avancé que l'air fixe, ou gaz acide méphitique, était une des parties constituantes de la pierre cal caire cette erreur a été adoptée généralement depuis quoique la terre calcaire soit composée d'acide igné d'une terre qui lui est propre, et d'une matière oléagineuse.

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