New geographies . beensteadily flowing for weeks. The riveris now a full mile in width, and movingvery slowly. It never dries up, becausethere is always a supply of water fromits thousands of springs, and it drainsso great a country that rain is nearlyalways falling into some of its hundredsof tributaries. Not only river-boats, but ships fromthe ocean are now passing up and downthe river. Now the water divides intoseveral streams, each flowing into the~ocean along a separate course (Fig. 43).Each of these pours its fresh waterinto the salt water of the sea, and be-yond their .mouths no land is
New geographies . beensteadily flowing for weeks. The riveris now a full mile in width, and movingvery slowly. It never dries up, becausethere is always a supply of water fromits thousands of springs, and it drainsso great a country that rain is nearlyalways falling into some of its hundredsof tributaries. Not only river-boats, but ships fromthe ocean are now passing up and downthe river. Now the water divides intoseveral streams, each flowing into the~ocean along a separate course (Fig. 43).Each of these pours its fresh waterinto the salt water of the sea, and be-yond their .mouths no land is to be seen,— nothing but water everywhere (). LAND, WATER, AND AIB 35 Other rivers may differ from this one in manyHow other ways. Instead of having their rivers differ sources in springs among thefrom this one mountains, they may start fromswamps or lakes. They may have low, soft system (Fig. 43). For instance, wespeak of the Mississippi River System,meaning the Mississippi River and allits Fig. 42. — Mouth of a large river where it pours its water into the ocean. banks near their sources, instead of high rockyones, and they may have no rapids or of emptying directly into the ocean,they may enter other rivers as tributaries, orthey may pour their waters into lakes. But,in spite of such differences,other rivers are much likethis one in most there is a river near you,how does it resemble _ theone described ? How does itdiffer from it ? We have seen thatfrom its source to its The meaning mouthariv- of nyer system er may re- ^ni river basin ceive Water from hundreds of tribu-taries. Thus the rainthat falls in placeseven hundreds of milesapart may at last bebrought together in asingle main a main stream,with all of its tributa-ries, is called a river
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectgeography, bookyear19
