...There will be, therefore,eggs in various stages of incubation in differentsections of the machines at the same time... 
Harry M. Lamon 「Ducks and Geese」
...Usuallythey will be dried so that they can be movedon the afternoon of the 28th day of incubation...
Harry M. Lamon 「Ducks and Geese」
...With the Anis one nest serves for several females who may depositas many as thirty eggs, incubation and the care of the youngbeing subsequently shared by the members of this singular family...
Frank M. Chapman 「Color Key to North American Birds」
...Numerous experiments have proved beyond all doubt that this disease insheep is both infectious and contagious; its period of incubation variesfrom seven to fourteen days...
Robert Jennings 「Sheep, Swine, and Poultry」
...The autumnal eggs afford useful employmentto turkeys and hens that choose to sit at unseasonable times; and theperiod of incubation is less tedious than that required for the eggs ofsome other birds...
Robert Jennings 「Sheep, Swine, and Poultry」
...The stage of incubation is from three to five days...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Theactual period of incubation may be shorter, for if blood from a case of Texasfever is injected into the blood vessels of healthy cattle the fever mayappear within five days...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...The shortest period is thus notless than 30 days if we include 10 days for the period of incubation afterthe young ticks have attached themselves to native cattle...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...The period of incubation is from thirty to thirty-five days...
John H. Robinson 「Our Domestic Birds」
...Its progress is regular; to the latest period of incubation itsucceeds that of the general poisoning of the blood—that of the pyrexiaof general fever—which for a time stops up all the secretions...
Honoré Bourguignon 「On the cattle plague: or, Contagious typhus in horned cattle. Its history, origin, description, and treatment」
...The horned cattle composing this latter class must becarefully watched, and be made the subject of the preventive treatment,the moment the first sign appears of the working of the incubation...
Honoré Bourguignon 「On the cattle plague: or, Contagious typhus in horned cattle. Its history, origin, description, and treatment」
...Most birds, whenseized by the mania of incubation, will sit upon anything which evenremotely resembles an egg...
Douglas Dewar 「Birds of the Indian Hills」
...The male bird assists the female in performing the office of incubation,and is said to relieve the monotony of his occupation by singing,thus often betraying a well-concealed nest...
Rev. C. A. Johns 「British Birds in their Haunts」
...As it is, after fourteen days' incubation, the eggsare hatched simultaneously, or nearly so, the Cuckoo being generallythe first...
Rev. C. A. Johns 「British Birds in their Haunts」
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