. Travels amongst the great Andes of the equator . Guaranda to Chimbo, runs through a valley, speaking have already endeavoured to make it clear that this Pacific Range lies outsidethe main chain of the Andes. It has nothing to do with the two parallelCordilleras. 2 The elevation of the range in general, in Ecuador, although considerable, is notso great as it is farther to the south ; and a railway might be carried there across thechain at a lower level than the Trans-Andean line which is at present being con-structed to connect Buenos Ayres with Valparaiso. 3 In Ecuador, the rocks
. Travels amongst the great Andes of the equator . Guaranda to Chimbo, runs through a valley, speaking have already endeavoured to make it clear that this Pacific Range lies outsidethe main chain of the Andes. It has nothing to do with the two parallelCordilleras. 2 The elevation of the range in general, in Ecuador, although considerable, is notso great as it is farther to the south ; and a railway might be carried there across thechain at a lower level than the Trans-Andean line which is at present being con-structed to connect Buenos Ayres with Valparaiso. 3 In Ecuador, the rocks that were previously at the surface are now almostentirely buried under lavas or volcanic-dusts, which have welled out of fissures orhave been violently ejected. 4 The excellent observers M. de la Condamine, and the Doctors Reiss & Stiibelmeasured Cotopaxi and Sangai at an interval of 130 years. The former found theheight of Cotopaxi was 18,865 feet, and Sangai 17,139 feet. The latter found theheights were 10,498 and 17,464 feet H S t-^ 2 2§ LJJ 3 £ i s s ae » o S = CD B 2 o o 5 « z CDC3 O u. ^£ S 5 z± Sl ° § z z o « i-U txl D=» UJ CD p ° o Ul J -1 Q_ 4 o ,„ CD s I Z =D u x CD in «=i H cc b. 3 CD ?D u. « s J « n; o z CD > o CD CO 1 o a Q «=c Q Z 3= < z H O (0 J 3T IL O J s CD O 3 CO a x CHAP. xix. CONFIGURATION OF THE ANDES OF ECUADOR. 337 Of the extinct Volcanoes, Cayambe, Antisana and Chimborazoarc the most important. There are lava-streams upon the flanksof all three mountains,1 and I cannot doubt that they had cratersof considerable size, though none can now be seen. The space atthe summit of Antisana is sufficiently large to admit of one asgreat as that of Cotopaxi, and I think it may be assumed thatunder the snowy domes which now form the summits of Chim-borazo there are rocky peaks which were formerly two of thehighest points around the rim of a crater. There are no records of eruptions of It musthave been an extinct vol
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