Plow equipment was typically accomplished with plug locomotives 8-20 horsepower and of course it is no wonder that can be caused by such forces, the most substantial earth movements. Not only to the ordinary work order in the country, therefore, serve the steam plows, but include the only way to heath land to bring in culture, where there are underground layers of iron sand, which have to be crossed so that plant roots dei deeper layers of the soil developed (see illustration)