. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 214 The serrii of Erero is a high, narrow, rugged, irregular ridge, four or five miles long, trending about east-north-east and west-south- west, and with abrupt and often precipitous sides. The upper part of the serra is formed of very heavy beds of sandstone, that dip to the south-south-east at an angle varying from 5°-20°. The top of the ridge is very irregular, ragged and picturesque, the sandstone being often exposed, in situ, in bare ledges or ridges, or lying strewn about in enormous blocks over the surface
. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 214 The serrii of Erero is a high, narrow, rugged, irregular ridge, four or five miles long, trending about east-north-east and west-south- west, and with abrupt and often precipitous sides. The upper part of the serra is formed of very heavy beds of sandstone, that dip to the south-south-east at an angle varying from 5°-20°. The top of the ridge is very irregular, ragged and picturesque, the sandstone being often exposed, in situ, in bare ledges or ridges, or lying strewn about in enormous blocks over the surface, which is so rough that it is no easy task to traverse the mountain from one end to the other. Along the northern side of the serra the sandstone forms a broken line of bluffs, varying in height from a few feet to several hundred; and just opposite the little village, and shown in the cut, there is a splendid precipice, remarkal^le for being rent by fissures from top to bottom. Below these blufis the side of the serra slopes very steeply, presenting the appearance of a talus, the surface being covered with loose fragments of sandstone. At both ends the serra is cut squarely off, but on the east the sandstone exteuds downwards, with a strong dip, disappearing under the more modern clays and sands of a swelling ridge like that of Monte-Alegre, that stretches eastward to the igarape, covered with the characteristic vegetation of the high, sandy Serra of Erer6 from the East. On the southern side of the serra, and near the eastern end, these sandy campos rise l)y a gentle incline nearly to the summit, so that. 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 Buffalo Society of Natural Sciences. Buffalo, N. Y. : Buffalo Society of Natural Sciences
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