Farm Development: An Introductory Book in Agriculture, Including a Discussion of Soils, Selecting & Planning Farms, Subduing the Fields, Drainage, Irrigation, Roads, Fences, Together with Introductory Chapters Concerning Farm Business, and the Relations of General Science to AgricultureOrange Judd Company, 1910 - 391 páginas |
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Resultados 1-5 de 43
Página vi
... Lake Agassiz . Cross section of Minnesota river .. 24 45 46 9 Cross section of Mississippi river . 46 10 11 Ancient and present drainage basin of Minnesota river . Levels of the Mississippi and Minnesota rivers in glacial times .. 47 48 ...
... Lake Agassiz . Cross section of Minnesota river .. 24 45 46 9 Cross section of Mississippi river . 46 10 11 Ancient and present drainage basin of Minnesota river . Levels of the Mississippi and Minnesota rivers in glacial times .. 47 48 ...
Página 37
... Lake Superior , and in the vicin- ity of Dubuque , Iowa , where the glacier did not flow over the land . There was stored up in this immense sheet of ice a large amount of water , which , during the period of melting and recession of ...
... Lake Superior , and in the vicin- ity of Dubuque , Iowa , where the glacier did not flow over the land . There was stored up in this immense sheet of ice a large amount of water , which , during the period of melting and recession of ...
Página 39
... lake or large stream . Since the fine particles were carried out in the water beyond where the coarser par- ticles were deposited , the clay is usually found above the stones , gravel and sand . The formation of morainic hills . - In ...
... lake or large stream . Since the fine particles were carried out in the water beyond where the coarser par- ticles were deposited , the clay is usually found above the stones , gravel and sand . The formation of morainic hills . - In ...
Página 40
... , in some cases , cover large areas . In the valley of the Red River of the North is an example . The glacial ice melting in " Ancient Lake Agassiz " ( see Figure 7 ) , which extended from the south border 40 FARM DEVELOPMENT.
... , in some cases , cover large areas . In the valley of the Red River of the North is an example . The glacial ice melting in " Ancient Lake Agassiz " ( see Figure 7 ) , which extended from the south border 40 FARM DEVELOPMENT.
Página 41
... Lake Traverse on the western side of Minnesota , where it had its outlet through what is now called the Minnesota river , deposited in its basin a final surface layer of fine clay , covering what is now known as the valley of the Red ...
... Lake Traverse on the western side of Minnesota , where it had its outlet through what is now called the Minnesota river , deposited in its basin a final surface layer of fine clay , covering what is now known as the valley of the Red ...
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Farm Development; An Introductory Book in Agriculture, Including a ... W. M. Hays Sin vista previa disponible - 2017 |
Términos y frases comunes
acre agricultural animals better biped bottom brace building canal capillary capillary action capstan carry cement cents clay clover construction corn corner post cost crop rotation crops cubic yard cultivation culverts datum deep depth drain tiles drainage earth engine expense farm home farmers farmstead feet fence fields flood water flow Fresno scraper furrow-slice furrows gate glacial glacier grade grain Grass gravel ground water height Illustrated inches instrument irrigation labor lake Lake Agassiz layer limestone low area macadam material mile Minnesota Minnesota river Mississippi river mixed moisture necessary open ditch outlet particles peat plow practical profitable rain rainfall reversible road machine river road roller roadside roadway rock roots rotation rural sand schools showing shown in Figure side soil spade station stone stream stumps subsoil tile drains tion tivated trees wagon wheat wire fence