. Profitable poultry keeping. n the lowest permitted tem-perature is reached, closes the draft and turns up the the heat constantly but slowly vacillates between thetwo extremes as fixed—intermediate between the highest andlowest admissible temperatures. A notable peculiarity of thismachine, and one Avhich doubles its capacity after the first ten days, is its double layers of Tlie upper tray is * Made by Perfect Jlatcher Co., Elniira, N. Y. American Incubators. 189 placed below after being set ten clays, and then the upper oneis filled. It is fair to say that experienced hatchers di
. Profitable poultry keeping. n the lowest permitted tem-perature is reached, closes the draft and turns up the the heat constantly but slowly vacillates between thetwo extremes as fixed—intermediate between the highest andlowest admissible temperatures. A notable peculiarity of thismachine, and one Avhich doubles its capacity after the first ten days, is its double layers of Tlie upper tray is * Made by Perfect Jlatcher Co., Elniira, N. Y. American Incubators. 189 placed below after being set ten clays, and then the upper oneis filled. It is fair to say that experienced hatchers differ intheir opinions as to the merits of this feature, the weight ofopinion being against it, except, perhaps, wlien eggs are veryplent3^ The clock needs to be wound once in three days, butdaily winding is recomniiended, and the battery is guaranteedto work a year without removal or interference. This ma-chine also receives high commendation from those who use it,and is certainly successful and satisfactory in its THE THERMOSTATIC INCUBATOR. In this incubator we have several novel features. There isno water tank, and no water is used except to supply moisture, * Made by E. S. Ranwick. 19 Park Place, Js[g\v York. I go Profitable Poultry Keeping. air warmed by contact with two metallic lamp flues givingthe desired Avarmth to the eggs. The air thns warmed is dif-fused in the npper part of the machine, where it comes incontact with pans of water, absorbing as much as it needs ;then it is forced downward, maintaining a nearly uniformlydescending flow past and through the ^gg trays, and passesout at the bottom of the machine through the Nursery,whereit passes off by a flue and chimney at the rear. The regula-tion of the heat is accomplished by a thermostatic bar, which,operating a simple clock-work, opens or closes the lamp flues,thus increasing or diminishing the heat of the current of air,which is constantly passing through the machine. None ofthe products of combustio
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectpoultry, bookyear1884
