The production of pork is one of the principal industries throughout the entire corn-belt. As the corn-belt is being extended northwestwardly, and as hundreds of farmers from eastern points are coming to this State, annually, to make it their future homes, the production of pork is sure to increase rapidly. There is no place in South Dakota, in which the small grains are grown, where the hog will fail to be a valuable addition to the livestock on the farm, if given a chance. The demand for pork in the market is usually as good as it is for any other kind of meat. Early maturity is a desirable characteristic in any kind of livestock, and if this feature can be brought about by feeding artificial compounds (other than are produced on the farm...