The Ohio Journal of Science Volume 16 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 edition. Excerpt: ...are of two kinds, calcium carbonate and iron oxide. These have been and are being deposited contemporaneously. The walls are coated with alternating layers of them. At some places, as in the "Flag Room" these are arranged in vertical stripes, while at others the calcite is the present outside coating which gives the white color of the "Milky Way" and other similar passages. One peculiarity of the iron deposits is the arrangement into a cell-like structure resembling a honeycomb, or better the leaf scars of a Lepidodenron. The calcite forms the comb and the iron oxide the honey of the first illustration. This can be seen imperfectly, to the right of the stalactites in the picture of the 'Geological Survey of Ohio, Bulletin 10. pp. 36-37. Crystal Chamber, Figure 2. It occurs on the walls and roof of the cave at many places, resembling a structure of organic origin, though that does not seem possible. No explanation is offered. In Figure 2 stalactites of iron oxide, the darker columns in the inner part of the recess, and calcite, the lighter columns, shows the close association of these two minerals. The change in the diameter near the middle of the column at the left in the same illustration, is characteristic of many of them, especially the larger ones. It occurs in those composed of both minerals and those of only one. A constriction should occur where stalactite and stalagmite meet. Most of the large stalactites show two however. The question might be raised whether an increased water supply would cause more rapid deposition. This might be brought about by glaciation or a number of other ways. Figure 3 of the stalactite and stalagmite "Evangeline and Gabriel," two of the largest columns in the cave are without any...