| | Ed Rogers Rare & Out of Print Books - Rare Paleontology Books |
 | | The new edition includes a new preface in English translation and also a new introduction containing historical data on Lenz, his contributions to mineralogy, a description of the above work and a bibliography of his works. |
 | | The first geological surveys of Pennsylvania and new York were nearing completion and the most important scientific results were appearing in the American Journal of Science, Lyell was eager to visit these and other states to see field areas first hand and notified Silliman and Hall of his intended visit. |
 | | In his study Owen practised the then new method of employing a fixed system of colours to denote strata on a geological map.He was the first to aply the term "Carboniferous" to coal measures and the first to name and correlate many of the formations of the Mississippi Valley. |
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