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 56
Página xi
... Rock crusher .. 335 223 Rock crusher with elevator and screen . 336 224 Semi - stationary rock crusher ... 337 225 Stone crushing plant in operation . 337 226 Reversible road rollers .. 339 227 Steam road roller . 342 228 Steam road ...
... Rock crusher .. 335 223 Rock crusher with elevator and screen . 336 224 Semi - stationary rock crusher ... 337 225 Stone crushing plant in operation . 337 226 Reversible road rollers .. 339 227 Steam road roller . 342 228 Steam road ...
Página xii
... rocks .. 378 269 Bracing end post with steel rod and " dead man ” of iron 378 270 Bracing corner post .. 379 271 Bracing end post with wire cables and " dead man " of stone . 379 272 Common three - board slide gate . 380 273 Rustic and ...
... rocks .. 378 269 Bracing end post with steel rod and " dead man ” of iron 378 270 Bracing corner post .. 379 271 Bracing end post with wire cables and " dead man " of stone . 379 272 Common three - board slide gate . 380 273 Rustic and ...
Página 32
... rock , but the action of wind , water , glaciers , earthquakes , heat , cold and other forces , during many ages , has broken up this surface into smaller particles which form the larger part of our soil as we see it today . Some of the ...
... rock , but the action of wind , water , glaciers , earthquakes , heat , cold and other forces , during many ages , has broken up this surface into smaller particles which form the larger part of our soil as we see it today . Some of the ...
Página 33
... rocks , hills and rivers its most recently written pages . One of the most in- teresting facts is the evidences in the layers of rock , slate , clay , etc. , of the great age of our world , or the long time covered by natural history ...
... rocks , hills and rivers its most recently written pages . One of the most in- teresting facts is the evidences in the layers of rock , slate , clay , etc. , of the great age of our world , or the long time covered by natural history ...
Página 34
... rock or clay may thus contain forms that existed centuries apart in point of time . We think of the earth as being very stable , but crustal disturbances , as earthquakes and volcanoes , occur fre- quently at many parts of the globe ...
... rock or clay may thus contain forms that existed centuries apart in point of time . We think of the earth as being very stable , but crustal disturbances , as earthquakes and volcanoes , occur fre- quently at many parts of the globe ...
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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 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