Academy of Natural Science Philadelphia
Published: 2015-07-21
Total Pages: 426
Get eBook
Excerpt from Journal of the Academy of Natural Sciences of Philadelphia, Vol. 4: Part I In vol. 2, p. 277, of the Journal of the Academy, we published a geological account of the vicinity of Franklin, Sussex county, New Jersey, together with a list of the minerals found at that interesting locality. We proposed furnishing the Academy with a description of some of these minerals; but, from a multiplicity of other engagements, we have been prevented from completing our examination of a substance which we believed new, and to which we gave the name of Dysluite. We hope soon to be able to present it to the Academy, and in the meanwhile offer the following note on some of the accompanying minerals. 1. Jeffersonite. As this mineral has been described in vol. 2, p. 194, of the Journal, no further notice of it, at this time, would be necessary, except to describe some of its crystals, which has been accomplished by Dr. Troost, who, moreover, has shown at the same time, and by these crystals, that the jeffersonite, which we believed to be a new species, appears in reality to be nothing more than a variety of the proteus of mineralogy, pyroxene. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.