...“All those which are in the centre of the nest with their points upwards are the eggs for hatching... 
Captain Frederick Marryat 「The Mission; or Scenes in Africa」
...A week or so later itmoults for the second time, and continues these processes offeeding and moulting until full grown, which is perhaps amonth from the time of hatching from the egg...
Clarence M. Weed 「Butterflies Worth Knowing」
...After hatching from the egg, the Mourning-cloak caterpillarsare also subject to the attacks of various parasites...
Clarence M. Weed 「Butterflies Worth Knowing」
...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」
...Care of Hatching Eggs...
Harry M. Lamon 「Ducks and Geese」
...Eggs for hatching shouldbe kept in a cool place...
Harry M. Lamon 「Ducks and Geese」
...Probablythe most common method of hatching is the use ofchicken hens...
Harry M. Lamon 「Ducks and Geese」
...The young are born covered with downand leave the nest just after hatching...
Frank M. Chapman 「Color Key to North American Birds」
...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.」
...This is about the sizeof the eye of a small bird in new-laid eggs, but is increased as much asten times in the process of hatching...
Robert Jennings 「Sheep, Swine, and Poultry」
...Eggs for hatching should be as fresh as possible; if laid the very sameday, so much the better...
Robert Jennings 「Sheep, Swine, and Poultry」
...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 most decided species of fever to which fowls are subject occurs atthe period of hatching, when the animal heat is often so increased as tobe perceptible to the touch...
Robert Jennings 「Sheep, Swine, and Poultry」
...After hatching, the young ticks would soon get upon anynorthern cattle which happened to be on the pasture...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...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」
...The hatching season...
John H. Robinson 「Our Domestic Birds」
...In hatching goose eggs under hens thehens are managed in just the same way as if they had hen eggs...
John H. Robinson 「Our Domestic Birds」
...A breeder who winsat some very small show may find it hard to sell either stock or eggsfor hatching except at a slight advance over market prices...
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」
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