The soybean is a summer annual legume, a native of eastern Asia. It has been grown in China and Japan for many hundreds of years, maiI1ly for human consumption. It was introduced into the United States early in the 19th century but did not become popular until a few decades ago. At that time importations were made into Kansas. Since that time its culture has rapidly spread over the United States. Its popularity is now generally recognized throughout the agricultural states. In localities where it has become increasingly difficult to secure stands of red clover the soybean is becoming more and more depended on for the restoration of nitrogen and as a source of green manure. The uses to which it is adapted are many. It is equally good for hog...