. Artificial incubation and incubators ... duct or egg-passage.(See Fig. 2.) This, in a hen of ordinary size, is nearly two feet in length. It isplaced directly under the ovary—a portion of which is shown in GERMINATION. 21 the cut—and as the yolks mature they break loose from their en-closing membrane, called the ovisac, and are received into theoviduct. This latter, consists of four parts. 1st. The dilated proximalextremity of the ovary. 2d. A long tubular canal opening by a E uarrow neck intobe called the uter-passage whichuterus into thethe second portionceives its coveringthe chalazaB. In
. Artificial incubation and incubators ... duct or egg-passage.(See Fig. 2.) This, in a hen of ordinary size, is nearly two feet in length. It isplaced directly under the ovary—a portion of which is shown in GERMINATION. 21 the cut—and as the yolks mature they break loose from their en-closing membrane, called the ovisac, and are received into theoviduct. This latter, consists of four parts. 1st. The dilated proximalextremity of the ovary. 2d. A long tubular canal opening by a E uarrow neck intobe called the uter-passage whichuterus into thethe second portionceives its coveringthe chalazaB. Inabove spoken of itmembrane, and inthe shell is form-through the sec-from three to fourthrough the thirdtwelve to eighteention occurs in theond) portion of thematozoa is foundfluid which theIt is not quite cer-nation can occurtion of the albu-fact that sperma-discovered in thepossible that they «-through and reachThe blastoderm, asers the germinalglass; as incuba-spreads like a thinthe yolk, immedi-telline membrane,more of the yolk Wl. Fig. 3.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectincubat, bookyear1883
