Totally separate and apart, its very material was a mystery; for the soapy, greenish-black stone with its golden or iridescent flecks and striations resembled nothing familiar to geology or mineralogy. The characters along the base were equally baffling; and no member present, despite a representation of half the world's expert learning in this field, could form the least notion of even their remotest linguistic kinship. They, like the subject and material, belonged to something horribly remote and distinct from ma…