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 |
Dentro del libro
Resultados 1-5 de 28
Página 38
... water during the recession of the glacier is illustrated by a spring rain melting the snow , combining the rain and the snow water into a flood . The front edge of the glacier , instead of being a straight line , was very irregular ...
... water during the recession of the glacier is illustrated by a spring rain melting the snow , combining the rain and the snow water into a flood . The front edge of the glacier , instead of being a straight line , was very irregular ...
Página 41
... flood waters having eroded hollows , giving natural surface drainage ; and the gentler forces acting through the ... water , of bacteria , of plant roots and of air on the soil are all of GEOLOGICAL HISTORY OF THE EARTH 4I.
... flood waters having eroded hollows , giving natural surface drainage ; and the gentler forces acting through the ... water , of bacteria , of plant roots and of air on the soil are all of GEOLOGICAL HISTORY OF THE EARTH 4I.
Página 46
... flood water in the glacial times when the melting water from the glacier added to that from the annual precipitation of rain required a large channel . From C to D is the present surface of the water , ordina- rily forming but a small ...
... flood water in the glacial times when the melting water from the glacier added to that from the annual precipitation of rain required a large channel . From C to D is the present surface of the water , ordina- rily forming but a small ...
Página 49
... water in flood times , during the glacial period , flowed around the higher land at X , X , following the flood course of F , F , F , and entered through a rapidly between the great falls and the con- fluence of the two rivers , there ...
... water in flood times , during the glacial period , flowed around the higher land at X , X , following the flood course of F , F , F , and entered through a rapidly between the great falls and the con- fluence of the two rivers , there ...
Página 50
... flood water times . E - F , flood water covering the present val- ley . C - D , present stream bed . nehaha Falls did not begin to form until the Falls of St. Anthony had receded past the mouth of Minnehaha creek , when the creek waters ...
... flood water times . E - F , flood water covering the present val- ley . C - D , present stream bed . nehaha Falls did not begin to form until the Falls of St. Anthony had receded past the mouth of Minnehaha creek , when the creek waters ...
Otras ediciones - Ver todas
Farm Development; An Introductory Book in Agriculture, Including a ... W. M. Hays Sin vista previa disponible - 2017 |
Términos y frases comunes
acre agricultural amount of water animals better biped bottom brace building canal capillary capillary action capstan carry cement cents clay 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 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 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