Note 54 — Chapter VII
Reading edition
These three plains constitute four fifths of all South America east of the Andes. The west slope of the Ecuadorian Andes is about 275 feet per mile; on the east it is 125 feet.
Reading edition
These three plains constitute four fifths of all South America east of the Andes. The west slope of the Ecuadorian Andes is about 275 feet per mile; on the east it is 125 feet.