472 SCIENTIFIC RECORD FOR 18S3. 



Lieutenant Schwatka states the length of the parts of his journey as 

 follows: 



Miles. 



From Chilcat to Lake Lindemann 52 



Lake Lindeinaun to Fort Selkirk 48G. 8 



Lake Lindernann to Nuklakayet 1, 303.2 



Total length of Yukon River 2,043.5 



The map prepared by Lieutenant Sckwatka's assistant will be of great 

 service in correcting the very erroneous maps now in existence. 



A new volcanic island has appeared in the Aleutian Archipelago very 

 near the position of Bogosloff Island, which rose in the same way in 

 May, 179i>. The old island seems to have disappeared, the new one oc- 

 cupying a x>osition about half a mile north-northwest of the old one. 

 This island is said to be about 1,000 feet high, and is in a state of erup- 

 tion still. It will be closely examined and reported upon during the 

 present year. 



SOUTH AMERICA. 



In South American travel the subject of most interest has been the 

 search for the remains of the ill fated expedition, under Dr. Jules 

 Orevaux, for the exploration of the Pilcomayo River. At a meeting of 

 the French Geographical Society convened for the purpose, M. Fjrnile- 

 Arthur Thouar gave an account of his journey to inquire into the causes 

 of the massacre of M. Crevaux and his party, and to rescue the survivors 

 who were supposed to be prisoners in the hands of the Tobas Indians. 

 Starting from Tacna in Peru in May, 1883, he hastily traversed the 

 plateau between La Paz and Oruro, and descending the Pilcomayo 

 from its source reached the place where the disaster took place in Sep- 

 tember, 1883. One survivor, a stupid boy, was found; but no relics 

 could be recovered except a broken barometer, a letter of Crevaux, and 

 a sketch map of the Pilcomayo. It was found that the attack by the 

 Indians was made in revenge for some of their tribe having been killed 

 by some white men from the garrison of Caiga, the Indians making no 

 distinction between their assailants and the party of M. Crevaux. Two 

 of the party escaped into the woods, but after four or five months of 

 exposure and suffering they died. 



M. Thouar gave some interesting details of the manners and customs 

 of the Tobas Indians, showing that they were especially savage. His 

 account of the journey down the Pilcomayo and across the Gran Chaco 

 indicates that the Pilcomayo is navigable for nearly all its course, but 

 the lower part of the river is obstructed by morasses. The gold medal 

 Of the French Geographical Society was awarded M. Thouar for his 

 explorations, which it is thought may be the means of affording a much- 

 needed outlet by way of the Pilcomayo and Paraguay Rivers for some 

 of the products of Bolivia. 



In the Proceedings of the Royal Geographical Society for June, 1883, 

 is given a detailed account of the journey down the Beni River, by Dr. 



