For market purposes the treatment of the ducklings is as follows: They are not allowed to go into any water, but are kept in hovels or the rooms of cottages, each lot of thirty or forty separated by low boards. It is no uncommon thing to see 2,000 or 3,000, all in one establishment. They are kept very clean and dry on barley straw; their food consists of hard-boiled eggs, chopped fine and mixed with boiled rice and bullock's liver, cut Tip small. This is given to them several times in the day for about a fortnight or more. When they are capable of consuming more they are fed on barley meal and tallow greaves (cracklings), mixed together with the water in which the greaves previously have been boiled. Some poultrymen also use horseflesh to mix with their other food. The above constitutes all that is necessary to produce early ducklings for the table. In plumage the Aylesburys are a pure, spotless white, and feathers of any other color will disqualify them. Drake and duck vary only in the ordinary respect of the male bird, showing a very handsome curled feather in the tail and being of a larger size than his mate. =Weight.=--The standard weight of the adult drake is 9 pounds; adult duck, 8 pounds; young drake, 8 pounds, and young duck, 7 pounds. COLORED ROUEN DUCKS. =History.=--The Colored Rouen duck (fig. 4) is deservedly popular throughout this country, and is considered one of the most profitable breeds to keep. These ducks are said to have come originally from the city of Rouen, in Normandy. It is known that large quantities of poultry are raised in Normandy, and while there may be no positive proof that these ducks came originally from that city, large numbers of birds closely resembling them are to be found in the market places there. Some writers contend that the name should be "Roan," owing to their color, but the color itself does not support this contention. The correct name is Rouen, and "Roan" is undoubtedly a corruption. =Description.=--The Rouen duck is a fine market bird, but does not mature as early as does the Pekin or the Aylesbury. The flesh is considered very delicate, and the breed is acknowledged to be superior for table purposes, being easily fattened. The Rouen will be found a profitable bird to raise on the farm, being hardy, prolific, quiet in disposition, and of beautiful plumage. Their eggs are not as large as those of the Pekin, and are diverse in color. The Rouen is undoubtedly closely related to the Mallard duck; its plumage alone would make good this belief. But the shape of the domestic Rouen duck has been greatly modified from that of the wild Mallard; the body is grown longer and heavier, with a tendency to drop down in the rear; the wings have lost the power of flight which the wild ancestor possessed. The plumage, however, remains almost the same. [Illustration: Fig. 4.--Trio of Colored Rouen ducks.]