The curious thing about the development of dry-farming in Utah, California, Washington, and the Great Plains is that these four sections appear to have originated dry-farming independently of each other. True, there was considerable communication from 1849 onward between Utah and California, and there is a possibility that some of the many Utah settlers who located in California brought with them accounts of the methods of dry-farming as practiced in Utah. This, however, cannot be authenticated. It is very unlikely that the farmers of Washington learned dry-farming from their California or Utah neighbors, for until 1880 communication between Washington and the colonies in California and Utah was very difficult, though, of course, there was always the possibility of accounts of agricultural methods being carried from place to place by the moving emigrants. It is fairly certain that the Great Plains area did not draw upon the far West for dry-farm methods. The climatic conditions are considerably different and the Great Plains people always considered themselves as living in a very humid country as compared with the states of the far West. It may be concluded, therefore, that there were four independent pioneers in dry-farming in United States. Moreover, hundreds, probably thousands, of individual farmers over the semiarid region have practiced dry-farming thirty to fifty years with methods by themselves.