Untitled - The Alfred Russel Wallace Website

Untitled - The Alfred Russel Wallace Website Untitled - The Alfred Russel Wallace Website

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CHAP, xvi RESIDENCE AT TARAPOTO 95 first expedition to the Campana Mountain and Lirio-pampa, already described at some length. In February 1856, he made an excursion to the head of the Puca-yacu, on the western slopes of Mount Guayrapurima. In March he went to the Upper gorges of the Shillicaio river. In May he went to the top of Cerro Pelado, and to the upper gorges of the Aguashiyacu, Uchulla- yacu, etc. There are a few notes on Mount Pelado, which consists of bare sharp ridges running about S.E. and N.W., the N.E. side being very precipitous but sloping more plain gradually towards the of Tarapoto. The rocks are covered with lichens, a few ferns, some rigid-leaved Liliacea?, and a few dwarf shrubs. From the S.E. the ridges dip abruptly to deep ravines, which form the sources of the streams of the pampa, as well as of some tributaries of the Huallaga. Lower down the slopes are clad with low forest which is densely mossy. The summit of all the ridges is a white, friable, coarse-grained sandstone, in thin layers, inclined at a very high angle. The Cumbasa rises to the north of this group of mountains, and many of the deep ravines above mentioned are some t its tributaries. (The accompanying beautiful drawing ol mountains north of Tarapoto is the only one of large size which was carefully shaded by Spruce himself. With the one exception of the immediate rough bit of foreground, it has been photograpl from the drawing as he left it fitly years curiously ridged mountain to the right exactl; responds to his description of it above gn

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