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Excerpt from The Colorado Plateau Region: Considered as a Field for Geological StudyIn order to analyse sub-aerial erosion, we must consider it (a) as consisting of parts, and (b) as modified by condi tions.A. All indurated rocks and most earths are bound together by a force of cohesion, which must be overcome before they can be divided and removed. The natural processes by which the division and removal are accomplished make up erosion. They ...

Excerpt from The Colorado Plateau Region: Considered as a Field for Geological StudyIn order to analyse sub-aerial erosion, we must consider it (a) as consisting of parts, and (b) as modified by condi tions.A. All indurated rocks and most earths are bound together by a force of cohesion, which must be overcome before they can be divided and removed. The natural processes by which the division and removal are accomplished make up erosion. They ...

Excerpt from The Underground Water of the Arkansas Valley in Eastern ColoradoThe principal rocks are shales, sandstones, and limestones, which alternate with one another in a series of layers. Each layer or forma tion is very broad, extending for scores or hundreds of miles, but is of comparatively small thickness. One rests on another like the leaves of a book. Each formation was originally a soft sediment at the bottom ofa sea or ocean. The ...

Excerpt from The Underground Water of the Arkansas Valley in Eastern ColoradoThe principal rocks are shales, sandstones, and limestones, which alternate with one another in a series of layers. Each layer or forma tion is very broad, extending for scores or hundreds of miles, but is of comparatively small thickness. One rests on another like the leaves of a book. Each formation was originally a soft sediment at the bottom ofa sea or ocean. The ...

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Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve ...

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Excerpt from Teachers' Guide and Laboratory Exercises to Accompany an Introduction to Physical GeographyThis Guide has been prepared for use with Gilbert and Brigham's Introduction to Physical Geography, of the Twentieth Century Series, and is therefore made parallel in arrangement With the chapters and sections of that vol ume. Most of the laboratory exercises and supplementary suggestions are, however, equally available for use With.About th...

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve ...

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Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve ...

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Excerpt from The San Francisco Earthquake and Fire of April 18, 1906: And Their Effects on Structures and Structural MaterialsII. Redwood tree on line of fault south of Fort Ross, showing earth quake effect along the fault trace.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-o...