The Clyde Mystery

The reader who desires to be hopelessly perplexed, may desert the contemplation of the Fiscal Question, and turn his eyes upon The Mystery of the Clyde. "Popular" this puzzle cannot be, for there is no "demmed demp disagreeable body" in the Mystery. No such object was found in Clyde, near Dumbarton, but a set of odd and inexpensive looking, yet profoundly enigmatic scraps of stone, bone, slate, horn and so forth, were discovered and now repose in a glass case at the National Museum in Queen Street, Edinburgh. There, as in the Morgue, lies awaiting explanation the corpus delicti of the Clyde Mystery. We stare at it and ask what are these slate spear heads engraved with rude ornament, and certainly never meant to be used as "lethal weapons"? What are these many-shaped perforated plaques of slate, shale, and schist, scratched with some of the old mysterious patterns that, in almost every part of the world, remain inscribed on slabs and faces of rock? Who incised similar patterns on the oyster-shells, some old and local, some fresh—and American!