. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. 150 bulletin: museum of comparative zoology. ing of the upper front edge of the block now remains, for the flaring walls of the ravines now meet in a sharp ridge crest that rises backward from the vertex of a triangular facet on the block front, toward the top of the block. In the third stage, Figure 8, the block is raised. r 1GUHE o. Diagrams showing spurs and deep ravines in the front of a tilted block, uplifted so high that nothing of the upper surface is here seen. still higher, and the ravines have becom
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. 150 bulletin: museum of comparative zoology. ing of the upper front edge of the block now remains, for the flaring walls of the ravines now meet in a sharp ridge crest that rises backward from the vertex of a triangular facet on the block front, toward the top of the block. In the third stage, Figure 8, the block is raised. r 1GUHE o. Diagrams showing spurs and deep ravines in the front of a tilted block, uplifted so high that nothing of the upper surface is here seen. still higher, and the ravines have become still longer and deeper ; at this stage the mountain crest might become serrate, and its back slope would be well dissected. The long sharp-crested ridges between the larger front ravines are still terminated by triangular facets, very systematic in form and position, with their bases aligned along J,he mountain front. The spur sides and the facets themselves will have. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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Keywords: ., bookauthorha, bookcentury1800, bookdecade1860, booksubjectzoology
