Course of Study in Geography for Mississippi Elementary Schools
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 edition. Excerpt: ...be used to illustrate a rising coast. It could be shown that a rising coast could have few indentations and would necessarily have shallow water, thereby interfering with good harbors which require deep water and protection from high waves and storms. Before the requisites of a good harbor are given, the pupils should be led to work out these requisites and to apply these to the sinking and the rising coast, and see which kind fulfilled conditions. By means of pictures, descriptions, and imagination they should see the rivers cutting depressions in the land and should see, with the slightest submergence, the sea water backing up into these low places which are protected by the higher land. It could be easily brought out that the best places as a rule for harbors on a rising coast are a few miles up the mouths of rivers which are deepened to give depth and continually dredged to keep them from refilling, where the land on each side the river gives protection. Examples of cities so located could be given, as Savannah, Charleston. Examples of"harbors formed by sinking could be given as Boston, Hew York, Portland, Maine. The construction of the Mississippi jetties with the need for such construction would be in place here. Here it would also be well to take up the fact that Mississippi had no good harbors because the coast is rising and that it was necessary to make an artificial one so as to export her lumber. The making of the Gulf port harbor should be developed. Knowing the requisites of a good harbor, they would see that excavation was necessary for depth and a breakwater for protection. Then they should learn exactly how the the particular Gulf port harbor was made and how it ie kept from filling up. Referenoes. Tarr & McMurry: ...
- 189 x 246 x 1mm | 64g
- 13 Sep 2013
- United States
- black & white illustrations