Portion Of Brazil Research Articles

The High Plateau of Brazil.

The High Plateau is a rather ill-defined region occupying the south-eastern portion of Brazil. It rises abruptly from the south-east coast but slopes off very gradually to the north and west. In consequence the rivers flowing north and west are of great length and importance in navigation. Those flowing south are useless for navigation though of great importance for water power. An interesting exceptional river is the Parahyba flowing east and parallel to the south-east coast-line curve. The geology of the whole region is essentially granite and gneiss with curiously metamorphosed quartzites and schists. The accompanying map was made by the writer during some explorations carried out over this region in 1919, and as some of the points studied and already published (1), (2) were new and surprising to geological science, the following general description is added.

The Rainfall of Brazil and the Sun-Spots

AN examination of the scanty records of rainfall obtainable in Brazil proves that the relation between rainfall and sun-spots, which has been pointed out in India by Dr. Hunter and others, holds good for the inter-tropical portion of Brazil.