Southern amerika. The rivers ojjapok and maropi

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In the French Guiana Krevo about which work in other areas of the South America we already spoke, has tracked in 1877 a current of the rivers Ojjapok and Maropi and, having passed mountains Tumashumak, left to the river Zhari which investigated. Travel was of great importance, as it has connected shootings in Guiana with already studied districts in delta of Amazon. Its work has continued and has in many respects added Kudro, working around mountains Tumashumak, on the rivers of the French Guiana and in the areas located directly to the north from delta of Amazon. The work in the French Guiana Kudro has started in 1881 and during almost twenty years' activity investigated many areas of the South America both within the French Guiana, and out of it. He has died in 1899 of a fever during research of large northern inflow of the bottom Amazon-river Trombetas.

From all those large works that has been done in the field of studying of Brazil during this period, we can mention some the major. Unknown areas of Brazil were studied independently from each other by Englishmen Uels and Big-Uiter. Last during researches of a line of the railway Ivan and Tibazhi investigated in 1872 the big, absolutely new areas of Southern Brazil on the rivers. Long lived in Brazil Uels has made most of all for geography of northern part of the country, in features-valleys the Dignity-fransisko and Tocantins. It has proceeded on the first to Rio Grande, and then on Rio-Somno has reached the river Tocantins which investigated to Carolina. Therefrom on the river Guazhau it has reached the Dignity-luisa on an ocean coast... ' Uels specially was engaged in physical geography and orography of Brazil and as it is drawn from its cards and explanatory notes, has done very valuable work ' (an official estimation of the Royal geographical society).