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Remember the Rainforest 1

 

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undecided, no doubt. The exterior of this metal mass, which we later had occasion to see in Lisbon (Note I), is characterized as a rolling block, with no proven connection to any orogeny, and rather resembles similar occurrences of large copper masses in Canada and in Connecticut. Particularly important is, in this sense, the appearance of the largest copper block known to date on the various orogenies: in Brazil, on granite, in North America, however, on the form of secondary trapetics and on primitive red grains.

Copper

From Cachoeira Village there are three roads: Muritiba, which goes through the Port of Sao Felix, to the southwest, to the Rio das Contas district and from there to Minas Gerais, Goias, etc.; Belem, which connects Cachoeira with the southern part of the province; and Capoeiracu, which follows W. and N.W., in the region of Jacobina, and to Estrada Real do Gado, where the Piaui cattle are raised. We took this last path, when we left, on February 27th, from Vila de Cachoeira, and climbed the steep Morro de Capoeira, whose summit, about 700 feet above the sea, reached a dry and undulating plateau, through which we went starting a few days of painful march. The mountain, on the outskirts of the

village, is reddish or yellow in gneiss and generally follows it from N. to S., deviating to NE and S. 0., and declines in middle layers to two feet thick to the west. At the top of the mountain, and at various heights, parts of veins appeared in the gneiss, where oligyst and magnetite replaced mica.

This stone is used by the inhabitants, under the name of Emery, for tools. Up to a league from Cachoeira, there are, on both sides of the road, many black farms, shops, and working ranches; there are extensive coffee plantations, grasses, cassava farms and some vegetable gardens; then the crops become more and

Feira da Conceicao today

more scarce until, near the Feira da Conceicao, two leagues away from the village, all traces of the industrial population disappear again, and the traveler is again in the middle of the countryside. We stayed overnight in this small village of mud huts, and then we spent the next day packing our luggage and organizing the troops. Our caravan was the object of lively curiosity on the part of the mulattos and blacks, accustomed to just watching the Piaui cattle pass on the road. They found it very dangerous to travel in the backlands at this time of year, and advised us to give it up because the regular rains from September to February had been missed and for this reason the general lack of water had depopulated the road. Already accustomed, however, not to rely unconditionally on such generally exaggerated opinions, we did not depart from our purpose, and sought exact information on

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