. The Encyclopædia britannica; a dictionary of arts, sciences, literature and general information. an Ildefonso, the Madeira begins at the confluence of theGuapore with the Mamore. Both of these streams have theirheadwaters almost in contact with those of the river idea of a connecting canal is based on ignorance of localconditions. San Antonio is the first of a formidable series ofcataracts and rapids, nineteen in number, which, for a riverdistance of 263 obstruct the upper course of the Madeirauntil the last rapid called Guajara Merim (or Small Pebble),is reached, a little b
. The Encyclopædia britannica; a dictionary of arts, sciences, literature and general information. an Ildefonso, the Madeira begins at the confluence of theGuapore with the Mamore. Both of these streams have theirheadwaters almost in contact with those of the river idea of a connecting canal is based on ignorance of localconditions. San Antonio is the first of a formidable series ofcataracts and rapids, nineteen in number, which, for a riverdistance of 263 obstruct the upper course of the Madeirauntil the last rapid called Guajara Merim (or Small Pebble),is reached, a little below the union of the Guapore with theMamore. The junction of the great river Beni with the ^Madeirais at the Madeira Fall, a vast and grand display of reefs, whirl-pools and boiling torrents. Between Guajara-Merim and thisfall, inclusive, the Madeira receives the drainage of the north-eastern slopes of the Andes, from Santa Cruz de la Sierra to Cuzco,the whole of the south-western slope of Brazilian Matto Grosso,and the northern one of the Chiquitos sierras, an area about AMAZON 7S5 ATL ANjrd. TheAMAZON BASIN Scolc. 1:^ Miles O 50 lOQ 200 200 400 Lon^jitudc* \VVst 70 of Greenwich Emery Tatluf K. equal to that of France and Spain. The waters find their wayto the falls of the Madeira by many great rivers, the principalof which, if we enumerate them from east to west, are the Guaporeor Itenez, the Baures and Blanco, the Itonama or San Miguel,the Mamore, Beni, and Mayutata or Madre de Dios, all of whichare reinforced by numerous secondary but powerful Guapore presents many difficulties to continuous navigation;the Baures and Itonama offer hundreds of miles of navigablewaters through beautiful plains; the Mamorfi has been soundedby the writer in the driest month of the year for a distance of500 m. above Guajara-Merim, who found never less than from10 to 30 ft. of water, with a current of from i to 3 m. an Rio Grande branch, explored under the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectencyclo, bookyear1910
