. Bulletin - New York State Museum. Science. Fig. 72 Fig. 73 v Ditetragonal prism, having eight faces. The basal plane or base consists of a pair of planes parallel to the horizontal or basal axes. The symmetry of this group can be best observed by consid- ering what is called the termination of the crystal, that is, the. Fig. 74 Fig. 75 Fig. 76 Fig. 77. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York State Museum;

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. Bulletin - New York State Museum. Science. Fig. 72 Fig. 73 v Ditetragonal prism, having eight faces. The basal plane or base consists of a pair of planes parallel to the horizontal or basal axes. The symmetry of this group can be best observed by consid- ering what is called the termination of the crystal, that is, the. Fig. 74 Fig. 75 Fig. 76 Fig. 77. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York State Museum; New York State Museum. Albany : New York State Education Dept

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectscience, bookyear1887