Notes on a Map of Part of the Cordillera Real of Author(s): Martin Conway Source: The Geographical Journal, Vol. 15, No. 5 (May, 1900), pp. 528-529 Published by: geographicalj Stable URL: http://www.jstor.org/stable/1774267 Accessed: 27-06-2016 01:35 UTC

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This content downloaded from 128.197.26.12 on Mon, 27 Jun 2016 01:35:24 UTC All use subject to http://about.jstor.org/terms 528 NOTES ON A MAP OF PART OF THE CORDILLERA REAL OF BOLIVIA.

mostly from the east, of force 1-3 of Beaufort's scale at most, with calms and often perfectly smooth sea, not even a ripple, on December 5, 6, 7, 8, 10, 11, 12, 14, 15, 17, 21; that is, on 70 per cent. of the seventeen days we spent south of 55° lat. On the remaining 30 per cent. of those days we had moderate to strong winds, but also from the east, north-east, and north, and even storm from the eass; at any rate, no sign of west winds during all these weeks. This weather by itself was favourable for our work, but the frequent fog and over- cast grey sky prevented us sometimes, on tbe other hand, from going on. As soon as we had passed 56° S. lat. Oll our way northward, this time to the east, in the longittlde of Kerguelen, we again met with the stormy west winds, and westerly storms accompanied us up to Serguelen. There remains still one remarkable thing, that is, tbe change of the barometer. You might expect that, beyond the stormy west winds, that is, south to about a6° lat., in the light east winds and good weather the barometer rose again, and tbat we had a relativelv high pressure of the air. To my surprise, we got the following results from the reaistering instrument:- Within the west-wind region, mean, 29" a1; and in their western part (Bouvet), 29" 63; and in their eastern part (EZerguelen), 29" 40. Within the east-wind region, mean, 29'/ 32. The most southerly regions had the lowest average of atmospheric pressure; we have not yet found a rising of the barometer towards the pole or a trace of an ant- arctic anti-cyclone, elren not near Enderby land.

NOTES ON A MAP OF PART OF THE CORDILLERA REAL OF BOLIVIA.*

By Sir MARTIN CONWAY.

THE part of the Cordillera Real contained in this map includes the hiahest portion of the ranCe. The mountains and the whole south-west slope for a width of about 25 miles were surveyed by me in 1898, and had not been previously surveyed. The approach of the rainy season prevented me from maliing a close inspection of the somewhat tanCled ridges between the Chisel peak and Condoriri, where some errors may have crept into the map. I did not visit the north-east side of the range. MMy own work is based upon a careful triangulation, the net of which is deposited for reference in the Royal Geographical Society. Details were filled in by means of a plane-table sketch, but the small scale upon which my work is here reproduced prevents the smaller forms from being reproduced. This is unfortunate, because the details of mountain form are in many respects even more important, from an orographical point of view, than the general configura- tion of the country, which they woul(l explain and account for. My original large-scale drawing, however, is in the Society's collection and can be referred to. The nomenclature of the peaks is very imperfect. All the mountains, I believe, have native names. Being ignorant of the Aymara language, I was unable to find them out, and none of the educated Bolivians I met could tell me what they were. The only names, of peaks along the main chain, of which I am certain are , Ancohuma (Hankuma), Condoriri (or Murumamani), Caca-aca, Mururata, , and Laicacollo. Chachacomane esists in the neighbourhood where the name iswritten, but may be the nest peak to north or south. The other names are very doubtful.

* Map, p. 564.

This content downloaded from 128.197.26.12 on Mon, 27 Jun 2016 01:35:24 UTC All use subject to http://about.jstor.org/terms HaukanaAncohuma peak (Mount (Mount ) Sorata) ...... [ Collway

NOTES ON A MAP OF PART OF THE CORDILLERA REAL OF BOLIVIA. 529

The remainder of the map is from various unpublished stlrveys by diSerent individuals, which were given to me in Bolivia. I have deposited the original documents in the Society's collection. The Pauchinto, Coriaguira, and valleys are frozn an excellent survey by Mr. J. B. Minchin, madc in 1880. The Amaguaya and Challana valleys are from a map by Senor Ed. Idiaques, made to represent the line of a projected road from La P^z to Huanay. The Zongo and valleys were surveyed by Seior Deodoro Moegle. The Rio de from below Las Juntas and the Rio Beni are frot Heath's survey. The route from La P^z to the Rio Undavi is from a vcry lough slietch-map by R. R. Harris, to indi- cate the route of a proposed railway to Yunaas. A line of route from Desaguadero to Ls Paz is from a most accurate survey by Senor Bustamante. Some details of the Puna south of Quenco are from Mr. Minchin. Finally, the outline of Lake Titicaca, beyond the parts I touched, is borrowed either from Herr Stubel's map in Petertnanns Mittett?l,ngen, or from Mr. Minchin. I have not reproduced any portion of Pentland's map. I have adopted for the altitudes of the peaks on the main rauge the means of my own and the best other observations I could find. I have not taken in account such nweasurements as give to Sorata and Illimani heights of 2S,000 feet, whereof several might be quoted. The following are the observations from which the means have been deduced;-

2

Name of peal. Authority. Altitude. Mean altitude.

Feet. Feet. North outlier of Illampu ...... Conway 7?237 17,237 Illampu (Mount Sorata) 21,2{5 Conway 187 feet below Ancolluma Pentlalld 243 ,, ,, j - t - \ 'M1,490

J Pentland ; 21,286 - Minchin k 21,470 - Conway 91,710 - 20,518 20,518 Corpapato (?) ...... Cotlway 19,697 19,697 Chachacomane ...... g 20,590 Pentland \ 20,355 _ Conway 1 20,822 Chisel peak ...... | - 20,100 Pentland 20,115 - Conway 20,090 - Condoril i ...... 20,030 Reck 1 20,115

Conway : 19,943 Caca-aca ...... 20,320 i Pentland ! 20,260 Reck 20,292 - Minchin 20S170 Con way 20,560 Mururata ...... Conway , 18,980 18,980 Illinlani ...... 1 21,190 PentlaUnd 21,181 Pis3is 21,35.S Reiss 1 21,040 Minchin 21,224 - Reck 21,339 - Conway 21,015 Quimza Cruz ...... - 18,280 Reck [ ] 8,363 - ? Moegle k 18,195

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