For the person who is engaging in the commercial poultry business the choice of breed narrows to a very few utility types. For purely egg-producing purposes or for broilers weighing slightly over a pound at killing time, the light Mediterranean breeds are the most efficient. Less feed is needed for maintaining the egg machine itself and less room per bird required. Of these so-called egg breeds, the White Leghorn is in a class by itself. This breed is noted for its large white-shelled eggs which top the markets where this color egg is in demand. In the most intensive egg-producing areas of the country the White Leghorn predominates. On the other hand, this breed is not a good meat producer, the mature birds being light in weight. For the dual purpose of egg and meat production the American breeds are the most popular. The principal commercial types of this general purpose group are Plymouth Rocks, Wyandottes and Rhode Island Reds. In some instances crosses of these breeds are proving good layers and highly efficient meat producers. The Rocks, Wyandottes and Reds have bright yellow skin, shanks and beak which are desired in market poultry. They are good winter layers, particularly, and some strains have been developed that rival the Leghorn in the number of eggs per bird. Both the White and the Barred Plymouth Rocks are popular among those seeking a dual purpose breed, and being slightly heavier than White Wyandottes and Rhode Island Reds they are preferred by many poultrymen. The latter two breeds are rapidly increasing in popularity and their best qualities are being brought out more uniformly by careful selection of breeding stock in each case. All of these American breeds lay brown eggs. In addition to the egg and the dual purpose types of poultry epitomized by the Leghorn and the Plymouth Rock, respectively, there are breeds which are primarily meat producers. Less attention is paid to the egg-producing ability of these than is the case with the others mentioned. The Brahmas, Cochins and Langshans stand in high regard as economical meat producers. The Jersey Black Giant is a more recent addition to the popular heavy breeds, especially for the capon trade. These Asiatic types grow slowly and are phlegmatic in movement so that they utilize feed for the economical development of high quality meat and attain great weight. For broilers of more than 1-1/2 pounds each, for roasting chickens and for capons, the dual purpose breeds are becoming more popular than the extremely heavy breeds due to their more rapid growth and more popular weight average at marketing time.