Cooke, Josiah Parsons, 1827-1894 · Boston, Little, Brown and Company · leaf 179
edron is± m il, in which ± w -R is the symbol of the inscribed rhom-bohedron. It has already been stated, that the number of thepossible rhomboliedrons on the crystals of a given substance isinfinite, and it now appears that for every rhombohedron theremay be an infinite number of scaleuohedrons ;… … THE THREE STATES OF MATTER. 155 crystallize in scalenohedrons (dog-tootli crystals), and no lessthan thirty-eight rhombohedrons and seventy-six scalenohedronshave been observed among the crystals of this substance.* Besides tlie two hemihedral forms which have been described,there are two other…
Matter · Heat
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