Laying Out Fields for Tractor Plowing

"Tractor plowing usually requires methods of laying out the land different from those followed when plowing with horses and an ordinary plow. Farmers plowing with a tractor for the first time are often at a loss for the most satisfactory methods of laying out their fields.... This bulletin embodies the descriptions of methods found best suited to their conditions and recommended by a majority of several hundred tractor owners who have reported their methods and experiences. Among these will be found methods of laying out land suited to nearly every farm in this country and to fields of different shapes." -- p. 2