woodworth: geological expedition to brazil axd chile. 29 



slender stock of provisions obliged us ahvays to make rapid transits of 

 the long stretches between settlements. We camped on the head- 

 waters of the Rio dos Patos, the bed of which abounds in agate pebbles 

 derived from the trap. 



September 3rd. — The mule road ascended rapidly from camp to 

 elevations by aneroid of 4,000 feet on the crown of the northwestern 

 arm of the Serra where there is a small settlement and a store. Small 

 streams continued turbid. The interstream areas were weathered 

 into deep pits with numerous bogs. 



September Jfih. — The march to the northwestward today lay at a 

 high level on the northeast side of the crest of the Serra, a rolling 

 country partly open campo and partly occupied by pine. Inhabitants 

 became more frequent and pack-trains indicated the proximity of the 

 terminus of the railway. At half-past two we heard the whistle of a 

 locomotive and at 5 P. M. came out upon the line of the railway in 

 construction from Porta da L niao southward over the trap plateau 

 to the Rio Peixe. At 9 o'clock at night we found our way into Sao 

 Joao, from which place on the following day we returned by train to 

 Ponta Grossa leaving the pack-train to come along at its own gait. 



September 15th. — With the view of studying more in detail the 

 tillite beds on the banks of the Rio Jaguaricatu in northeastern Parana, 

 Dr. Oliveira and myself with a small camp outfit and one camarada 

 went from Ponta Grossa to Sengens Station on the newly constructed 

 railroad. While absent from our camp on the 16th, our tent and most 

 of the contents were destroyed by a fire. Fortunately none of my 

 instruments or notes were lost. Through the courtesy of the railway 

 officials we slept in a railway storehouse that night and the following 

 day returned to Ponta Grossa. 



September 19th. — In company with Dr. Euzebio Oliveira I 

 returned to Rio Xegro with the intention of exploring the tillite beds 

 along the road between that town and Sao Bento. It was on this 

 occasion that Dr. Oliveira found a bed of fossiliferous marine shales 

 between boulder-beds on the south side of the Rio Xegro. About 

 two legoas above Rio Xegro there is a water-fall where the Ribeira das 

 Rutes falls over a hard bed of tillite. 



From Rio Xegro I returned to Curityba en route to Paranagua, 

 whence by steamer I reached Rio de Janeiro. The delay in waiting 

 for the steamer was utilized at Curityba and at Paranagua in examina- 

 tion of the superficial deposits and studying the topography the 

 results of which studies are embodied in the account of the geomor- 

 phology of this part of Brazil. 



