He would refer any mineral to its proper place among the six hundred [1] elementary substances now enumerated, by its fracture, its appearance, its hardness, its fusibility, its sonorousness, its smell, and its taste.
A la cassure, à l'aspect, à la dureté, à la fusibilité, au son, à l'odeur, au goût d'un minéral quelconque, il le classait sans hésiter parmi les six cents espèces que la science compte aujourd'hui.