Cooke, Josiah Parsons, 1827-1894 · Boston, Little, Brown and Company · leaf 173
is series of pyramids passes through the same va-riations of form as those of the first class. The two limits arethe hexagonal prism, where m= <x>, and the basal plane, wherem ^0. It will be noticed that the planes of the hexagonal pyramid and prism of the second order have the same position… … THE THREE STATES OF MATTER. 149
Matter · Heat
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