Success with artificial incubators depends more than the average personsnpposes on the situation of the machino. Country Gentleman quotes a correspondent who iusists that the machine ba sitiiated where there will be the least possible flnctuation in temjierature. Au incubator should never bo where the sun can shine directly npon it or in direct drafts of air, both of which tend to cause variations in the temperature, and the latter of which may extinguish the lamp. A second important requisito of situation is that it be where fresh air can be constan tly furnished without subjecting the machine to a draft. To meet these two requisites it is advisabje that the incubator be placed in somo underground or partially underground room, like a cellar or basement. Here the temporaturo changes slowly. Here, too, fresh air in sufficient quantity eau be admitted without causing a draft. And here also the machine can be placed out of the rays of the sun.