. Artificial incubation and incubators ... you can pack them. Anegg cabinet is a very convenient arrangement for storing may be made cheap and simple, or as elaborate as ones fancyand pocket may dictate. Our illustration (Fig. 12) gives a very-plain representation how one may be constructed. Some personsinsist that the small end down is proper and preferable. My ex-perience does not coincide with this method. The theory is simple and easily understood. The air cell in thelarge end of the egg always enlarges while the egg is laid the butt end is up, the evaporation of moisture
. Artificial incubation and incubators ... you can pack them. Anegg cabinet is a very convenient arrangement for storing may be made cheap and simple, or as elaborate as ones fancyand pocket may dictate. Our illustration (Fig. 12) gives a very-plain representation how one may be constructed. Some personsinsist that the small end down is proper and preferable. My ex-perience does not coincide with this method. The theory is simple and easily understood. The air cell in thelarge end of the egg always enlarges while the egg is laid the butt end is up, the evaporation of moisture is greater, andthe pressure of air through the open pores at that end rapidly in-creases the size of the bubble. If the butt end is put down, theweight of the liquid contents of the egg, pressing down on the bubble, hinder theair and allow onlygradual increaseair cell. This cantaking two eggscarefully mark-air cell in eachthem away, oneother butt down,weeks compareped for hatchingpacked this average-shaped eggs; un-uneven-shaped. Fig. 12. entrance of thea very slow andin the size of theeasily be tested byof equal size, anding the rim of thewith ink: putpoint down, theAt the end of twothem. Eggs ship-should always beFor sitting, usesized, regular-usually large andones are apt to be infertile, or to produce malformed chickens. The amount of cold and exposure eggs will bear without injuryduring the term of incubation has created much diversity ofopinion. From a comparison of records of experiments conducted by thewriter, and also from other data which I have compiled, I findthat the ratio of loss decreases very fast as the process of incu-bation proceeds. Thus, when the eggs have been subjected to thenecessary heat for forty-eight hours, the danger from chilling oroverheating is vastly greater than at or after the fifteenth that would be ruined by an exposure of four or six hours tocold, or two or three hours temperature of 110° on the fourthday, will remain un
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectincubat, bookyear1883
