... few inches in thickness. It has consequently been found impracticable in this district to draw a line of boundary between the representatives of the Great and Inferior Oolite. Thus it has arisen that under the term " Northampton Sand " are included,... The Geology of Rutland and the Parts of Lincoln, Leicester, Northhampton ... - Page 30 de John Wesley Judd - 1875 - 320 pages Affichage du livre entier -
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