"...a combination of a bipyramid of the first order with a ditetragonal bipyramid and the prism of the…

"...bounded by twenty-four scalene triangles...This form may be considered as a combination of two scalenohedra,…

"This is the general form; it is bounded by sixteen scalene triangles, and all the indices are unequal."…

"...bounded by twelve isosceles trianes each of which are equally inclined to two planes of symmetry."…

"This is the general form and is bounded by eight scalene triangles." -The Encyclopedia Britannica 1910

"This is the general form and is bounded by eight scalene triangles." -The Encyclopedia Britannica 1910

"...bounded by six isosceles triangles...indices as in the hexagonal bipyramid." -The Encyclopedia Britannica…