...Few, if any, of these evercould succeed in hatching their young and winningthem through to the feathered stage... 
George Murray Levick 「Antarctic Penguins」
...Post em bry on' ic, development after birth or hatching...
Worrallo Whitney 「A Guide for the Study of Animals」
...By selecting thelarge eggs for hatching and by liberal feeding, it iseasy to increase the size of Mallards to such an extentthat they resemble small Rouens rather thanwild Mallards...
Harry M. Lamon 「Ducks and Geese」
...Eggs for hatching must be shipped when they arefresh as duck eggs tend to deteriorate in qualityquite rapidly...
Harry M. Lamon 「Ducks and Geese」
...If ducks work too much inthis kind of material they will eat more or less of itwhich injures the eggs for hatching purposes...
Harry M. Lamon 「Ducks and Geese」
...Age of Hatching Eggs...
Harry M. Lamon 「Ducks and Geese」
...Care of Eggs for Hatching...
Harry M. Lamon 「Ducks and Geese」
...Washing does notseem to injure their hatching qualities...
Harry M. Lamon 「Ducks and Geese」
...At this time themachine should be tightly closed up and left so untilthe hatching is over...
Harry M. Lamon 「Ducks and Geese」
...Itis well to mark the eggs as gathered with the datethey are laid so as to overcome the possibility of savingtoo long any eggs for hatching...
Harry M. Lamon 「Ducks and Geese」
...The most usual methodsof hatching goose eggs are by means of the chickenhen and the goose...
Harry M. Lamon 「Ducks and Geese」
...Probablythe most common method of hatching is the use ofchicken hens...
Harry M. Lamon 「Ducks and Geese」
...The length of time required for hatching the eggs is uniform in all the breeds...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
...The old-time notion, that small, round eggs produce females, and long,pointed ones males—originally applied, by the ancients, to eatingrather than hatching purposes—may be considered exploded...
Robert Jennings 「Sheep, Swine, and Poultry」
...The cuckoo lays its eggs in the nests of other birds,leaving to them the hatching and rearing of its young...
John H. Robinson 「Our Domestic Birds」
...Success in artificial hatching requires careful attention to theoperation of the incubator and good judgment in adjusting and regulatingit...
John H. Robinson 「Our Domestic Birds」
...On this scale themethods should be similar to those used on the special duck farms,except that the hatching might be done with hens...
John H. Robinson 「Our Domestic Birds」
...In a very shorttime the artificial method had displaced hatching with hens on thecommercial duck farms, and the business was growing amazingly...
John H. Robinson 「Our Domestic Birds」
...Each hatchery does the hatching for a community...
John H. Robinson 「Our Domestic Birds」
...In the early part of the eighteenth century a French scientist namedRéaumur, who was much interested in poultry, began to make experimentsin artificial hatching and brooding...
John H. Robinson 「Our Domestic Birds」
...He succeeded in hatching eggs by utilizing the waste heatfrom a baker's oven, and also hatched eggs in hotbeds heated withdecomposing manure...
John H. Robinson 「Our Domestic Birds」
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