I have endeavored in this little book to impart what little knowledge I possess on this important subject to the reader. If he can learn wisdom by my experience and avoid the errors into which I fell, it is all I ask. The business, as I have learned its details, has become more profitable each year; while the experience of the past season has been highly satisfactory, as the demand has been greater than ever before. FORMULAS FOR FEEDING DUCKS. For Breeding Birds. (Old and young, during the Fall.) We turn them out to pasture, when we can, in lots of 200. Feed three parts wheat-bran; one part low grade flour; one part corn meal; five per cent. of beef-scrap; three per cent. of grit, and all the green feed they will eat, in the shape of corn-fodder, cut fine, clover or oat-fodder. Feed this mixture twice a day, all they will eat. For Laying Birds. Equal parts of wheat-bran and corn meal; ten per cent. beef-scrap; twenty per cent. of low grade flour; ten per cent. of boiled turnips or potatoes; fifteen per cent. of clover-rowen, green rye or refuse cabbage, chopped fine; three per cent. of grit. Feed twice a day, all they will eat, with a lunch of corn and oats at noon. Keep grit and ground oyster shells constantly by them. We never cook the food for our ducks, but mix it with cold water. For Feeding at Different Stages of Growth. The first four days, feed four parts wheat-bran; one part corn-meal; one part low grade flour; five per cent. fine grit. Feed four times a day, what they will eat clean. When from four days to four weeks old, feed four parts wheat-bran; one part corn-meal; one part low-grade flour; three per cent. fine grit; five per cent. of fine ground beef-scrap, soaked. Finely cut green clover, rye or cabbage. Feed four times a day. When from four to eight weeks old, feed three parts wheat-bran; one part corn-meal; one part low-grade flour; five per cent. of fine grit; five per cent. of beef-scrap. Mix in green food. One per cent. fine oyster shells. Feed four times a day. When from six to eight weeks old, feed equal parts corn-meal; wheat-bran and fifteen per cent. low grade flour; ten per cent. of beef-scrap; ten per cent. of green food; three per cent. of grit. Feed three times a day. When from eight to ten weeks old, feed one half corn-meal; equal parts of wheat-bran and low grade flour; ten per cent. of beef-scrap; three per cent. of grit. Oyster shells and less green food. Feed three times a day. They should now be ready for market. Note.--The above ingredients should be made into a mash, and should be crumbly, not pasty. Proportions by measure, not weight. QUESTION BUREAU. QUESTION 1.--Why do my ducks not lay? I feed them all the corn they will eat.