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Father Gili went up in 1757, and which he 

 says is twice as broad as the Tiber, comes from 

 a considerable chain of mountains, which in it's 

 southern part bears the name of the river, and 

 joins the group of Calitamini, and of Cunava- 

 mi. Next to the Peak of Duida, which rises 

 above the mission of Esmeralda, the Cerros of 

 Sipapo appeared to me the most lofty of the 

 whole Cordillera of Parima. They form an 

 immense wall of rocks, shooting up abruptly 

 from the plain, the craggy ridge of which runs 

 from S.S.E. to N.N.W. I believe these crags, 

 these indentations, which equally occur in the 

 sandstone of Mount Serrat in Catalonia, are 

 owing to blocks of granite heaped together. 

 The Cerros de Sipapo* wear a different aspect 

 every hour of the day. At sunrise the thick 

 vegetation, with which these mountains are 

 clothed, is tinged with that dark green inclining 

 to brown, which is peculiar to a region where 

 trees with coriaceous leaves prevail. Broad and 

 strong shadows are projected on the neighbour- 

 ing plain, and form a contrast with the vivid 

 light diffused over the ground, in the air, and 



* 1 set these mountains at the island Piedra Raton, 

 whence they bore S. 45° E., at the mission of Santa Bar- 

 bara, N. 26° W. ; at the mouth of the Mataveri, N. 49° E. 

 The mountains, which the missionary Gili designates by the 

 name of Cerros de Jujamari^ form no doubt a separate group, 

 east or north-east of the Cerros de Sipapo, 



