File:Advanced Geography (1899) (14594974788).jpg

Identifier: advancedgeography (find matches)
Title: Advanced Geography
Year: 1899 (1890s)
Authors: Alexis Everett Frye
Subjects:
Publisher: Ginn & Company
Contributing Library: Allen County Public Library Genealogy Center
Digitizing Sponsor: Internet Archive

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ts carry clear water intoand out of harbors and thuskeep them pure. The word peninsula means almostan island. Peninsulas are only partlysurrounded by water. A neck ofland joining a peninsula with an-other body of land is called anisthmus. A strait is a body of water join-ing two larger bodies of water. Astrait may be many miles in width, but it is always nar-rower than the bodies of water which it connects. Theword strait means narrow. Some long and shallow straits are called sounds. Thename sound may also be given to any body of water partly in-closed byislands.Soundsandstraits areoften onlydrownedvalleys.Some ofthem are very deep. Large arms of the sea arecalled bays, gulfs or seas. Someof these are hundreds of mileslong and wide. Straight or regular shoresare found where smooth bottoms have been slowlyraised from the sea. 1 More exactly, in 24 hours and 50 minutes. Some places have butone tide a day, and others have more than two tides in that time. 14 WAVES, TIDES AND SHORE FORMS.
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Along such shores there are but few bays in whichvessels can find shelter from winds and waves, butthere may be good harbors in the river mouths. Irregular shores occur where rough or rugged landshave partly sunk beneath the sea. Along irregular coasts vessels find shelter in bays or behindislands. Many people living near such coasts become goodsailors. Valleys that have sunk beneath the sea are said to bedrowned. The drowned valleys form hays.Deep, long and narrowbays are known asfiords. The ridges,hills or other parts ofthe land between thedrowned valleys mayform islands or penin-sulas. Rock waste from headlands often forms beaches at thefoot of sea-cliffs. Part of the waste is also carried bywaves along the shores, where it is spread out into beachesor built into bars, cutting off parts of bays. Waves often gather sand from shallow bottoms andthrow it up in bars off low shores, thus partly inclosing

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