Breeds of Ducks--Classification of Breeds--Marking the Ducks--Nomenclature--Distinguishing the Sex--Size--Popularity of Breeds--Egg Production--Size of Duck Eggs--Color of Eggs--Broodiness--General Considerations in Making the Mating--Making the Mating--The Pekin--The Aylesbury--The Rouen--The Cayuga--The Call--The Gray Call--The White Call--The Black East India--The Muscovy--The Colored Muscovy--The White Muscovy--The Blue Swedish--The Crested White--The Buff--The Runner--The Fawn and White Runner--The White Runner--The Penciled Runner--Preparing Ducks for the Show--Catching and Handling Ducks--Packing and Shipping Hatching Eggs. III. Commercial Duck Farming--Location--Estimate of Equipment and Capital Necessary in Starting the Business 42 Distribution--Stock Used--Location of Plant--Making a Start in Duck Farming--Equipment, Capital, etc. Required--Lay-out or Arrangement of the Plant--Land Required--Number of Breeders required--Housing Required for Breeders--Incubator Capacity--Brooder Capacity--Fattening Houses or Sheds--Feed Storage--Killing and Picking House--Resident--Horse Power--Feeding Track--Electric Lights--Water Supply--Fences--Labor--Invested Capital--Working Capital--Profits. IV. Commercial Duck Farming--Management of the Breeding Stock 55 Age of Breeders--Distinguishing Young from Old Ducks--Selection of Breeding Ducks--Number of Females to a Drake--Securing Breeding Drakes--Houses and Yards for Breeders--Bedding and Cleaning the Breeding Houses--Cleaning the Breeding Yards--Water Yards for Breeders--Feeding the Breeders--Egg Production--Time of Marketing Breeders--Disease--Insect Pests--Dogs. V. Commercial Duck Farming--Incubation 70 Kinds of incubators used--Incubator Cellar--Incubator Capacity Required--Age of Hatching Eggs--Care of Hatching Eggs--Selecting the Eggs for Hatching--Temperature--Position of Thermometer--Testing--Turning the Eggs--Cooling the Eggs--Moisture--Fertility--Hatching--Selling Baby Ducks. VI. Commercial Duck Farming--Brooding and Rearing the Young Stock 80