PERUVIAN VOLCANOES. 



283 



fail to attract many visitors, thanks to the astronomic observatory founded by 

 Pickering on Carmen Alto, one of its buttresses. 



South of Misti extends the breached crest of Pichu-Pichu, followed by the 



Fig. 109.— Zones op Altitude, Peett. 

 Scale 1 : 16,000,000. 



West or ureenwicln 



Heights. 



to 3,2£Û 

 Feet. 



3,280 to 6 5R0 

 Feet. 



6,560 to 13,030 

 Feet. 



Depths. 



to 1,000 

 Fathoms. 



1,000 to 2,000 

 Fathoms. 



13,000 to 20,000 20 000 Feet 



Feet. and upwarda. 



2.000 Fathoms 

 aud upwards. 



310 Miles. 



elongated Omate volcano, called also Huayna-Putiua (" Putina the Bold"). This 

 is not so much an isolated mass as a crest some 18 miles long, whose highest 



