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PROCEEDINGS OE THE GEOLOGICAL. SOCIETY. 



[Nov. 21, 



following series of observations made by a gentleman for some time 

 my fellow-traveller, Captain Friesach, of the Austrian army, as given 

 in tbe annexed Table. 



Locality. 



Arica 



Tacna 



Pachia 



Palca 



LaPortada 



Alto de Guaylillos 



Ancara 



Uchusuma 



Rio Mauri 



Pailumaiii 



Chulluneayani (pass) 



Santiago de Machaca 



San Andres de Machaca . . 



Nasacara 



Surire 



Pacheta del Rio Colorado... 



Coniri 



Biacha 



Unduavi 



Highest points between 1 

 Unduavi and La Paz... J 



Tambillo de Laja 



Disaguadero 



Alto de Potosi 



Elevation 

 above sea 

 in English 

 feet. 



20 

 1,950 



3,580 

 9,700 

 12,630 

 14,650 

 13,750 

 13,910 

 13,560 

 14,725 

 13,680 

 12,770 

 12,890 

 12,710 

 13,565 

 14,210 

 12,950 

 12 780 

 10,780 



15,630 



12,830 

 12.680 

 13,580 



Locality. 



Elevation 

 above sea 

 in English 

 feet. 



La Paz (highest part) . 



La Paz (Alameda) 



Millocato 



Cotaha 



Hacienda de IUiniani 



Santiago 



Rio de la Paz on entering 1 

 Tungas J 



Rio de la Paz below Toca. . . 



Yrupana 



River below Yrupana 



Culumani 



Rio de Tanampayo 



Coripata 



Corioco 



River near Corioco 



Sandillan 



Highest point between 1 

 Sandillan and Unduavi J 



Copacabana 



Puno ( shore of LakeTiticaca) 



Ariquipa (plaza)* 



Summit of Misti, or vol- 

 cano of Ariquipa* 



* The height of the plaza of Ariquipa was determined by the Torricellian 

 experiment, and found as stated above ; the summit of Misti or volcano of 

 Ariquipa was found to be 11,436 feet above the plaza by a trigonometrical 

 measurement. 



And lastly, in addition to these, the following Table of heights of 

 mountains in English feet has been calculated from some of the 

 results obtained by the recent Government-survey of Bolivia. 



Mountain. 



Illampu 



lllimani 



Sajama (volcano) , 



Coololo (Apolobaniba) . . . 



Huayna Potosi 



Cachacomani (volcano).., 

 Quenuata f peaks of Tacora 

 Chipicani 1 (volcano) 



Elevation 

 above sea 

 in English 

 feet. 



24,812 



24,155 

 23,014 

 22,374 

 21,882 

 21,583 

 21,252 

 22,687 



Mountain. 



Mururata 



Callinsani 



Potosi 



Tunari de Coehabamba 



Hermoso de Aullagas 



Portugalete 



Espejos 



Misti (volcano of Ariquipa) 



Elevation 

 above sea 

 in English 

 feet. 



20,418 



20,530 

 15,724 

 15.608 

 15.747 

 14,720 

 9,337 

 20,150 



