01565naa a2200229 a 450000100080000000500110000800800410001910000170006024500880007726000090016552009650017465000110113965000120115065000130116265000190117565000130119465000150120765300140122265300160123665300170125277300660126917924992017-04-17       1894    bl ---       0--  u    #d1 aEVANS, J. W.  aThe Geology of Matto Grosso (particulary the region drained by the upper Paraguay).  c1894  aI SPENT some time in this parth of South America in the years 1891 and 1892, but unforeseen circunstances seriously interfered with geological work. The present paper is the result of such observations as I was able to make, and I have to thank the other members of the expedition (including the leader, Lient. O.T. Storm, of the Scvandinavian Navy; his brother, Mr. Johan Storm; and Mr. Spencer Moore, the well-known botanist) for doing all that was possible to facilitate my labours. Very little has hitherto been known geologically of most of the country I traversed. A short account of A. d'Orbigny's valuable work in the adjoining portion of Bolivia in the year 1842 is given in the present paper. Castelnau visited Matto Grosso in 1843-44, Chandless about 1864, the Brazilian and Bolivian Joint Boundary Copmmission in 1875-78, and Von den Steinen with Clauss in 1884 and subsequently; but they have not given us any very definite geological information.  aBrazil  ageology  aPantanal  aParaguay River  aGeologia  aHidrologia  aHidrology  aMato Grosso  aRio Paraguai  tQuarterly Journal Geology Societygv.50, n.2, p.85-104, 1894.