![First Report of a Geological Reconnoissance of the Northern Counties of Arkansas, Made During the Years 1857 and 1858, by David Dale Owen ... Assisted ... Elderhorst ... Edward T. Cox. [With Plates.]](https://m.media-amazon.com/images/I/71F5xfnBaLL.jpg)

First Report of a Geological Reconnoissance of the Northern Counties of Arkansas, Made During the Years 1857 and 1858, by David Dale Owen ... Assisted ... Elderhorst ... Edward T. Cox. [With Plates.]
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