How much to feed 32 Oyster shells and grit 33 Killing and dressing for market (illustrated) 33 Development of the duckling in the egg 34 Natural incubation 36 Artificial incubation 36 Geese Standard breeds of geese 38 Gray Toulouse geese (illustrated) 38 White Embden geese (illustrated) 39 Gray African geese (illustrated) 40 Brown and White Chinese geese (illustrated) 41 Gray Wild geese (illustrated) 43 Colored Egyptian geese (illustrated) 43 Management of geese 44 Mating and setting 45 Feeding and dressing for market 47 Cross breeding (illustrated) 48 DUCKS AND GEESE. DUCKS. STANDARD BREEDS OF DUCKS. =Introduction.=--There are ten standard breeds of ducks raised in this country, as follows: The White Pekin, White Aylesbury, Colored Rouen, Black Cayuga, Colored Muscovy, White Muscovy, Gray Call, White Call, Black East Indian, and the Crested White. Of these breeds, the first six are considered profitable to raise; the two breeds of Calls and the Black East Indian are bantams, and are bred more for the showroom; the Crested White may be considered as almost purely ornamental. [Illustration: Fig. 1.--White Pekin duck.] WHITE PEKIN DUCKS. =History.=--Of all ducks for farm and practical purposes none stand higher in popular esteem than the White Pekin (fig. 1). It is valuable for raising on a large scale, and is the most easily raised of any. It is a very timid bird and must be handled quite carefully. It was imported from China in the early seventies, and has steadily grown in popularity since its introduction into this country. [Illustration: Fig. 2.--Group of White Pekin ducks.]