. The cell in development and inheritance. Cells; Cells. 284 CELL-DIVISION AND DEVELOPMENT result, and concluded that even when the Q,g'g approaches the spherical form the symmetry still exists, though obscured. More- over, according to Hallez ('86) and later writers, the ^gg always lies in the same position in the oviduct, its cephalic end being turned a m a \ V: A ^ \ d -n \i \ B P. \ Fig. 129. —Eggs of the insect Corixa. [Metschnikoff.] A. Early stage before formation of the embryo, from one side. B. The same viewed in the plane of symmetry. C. The embryo in its final position. a, anterior
. The cell in development and inheritance. Cells; Cells. 284 CELL-DIVISION AND DEVELOPMENT result, and concluded that even when the Q,g'g approaches the spherical form the symmetry still exists, though obscured. More- over, according to Hallez ('86) and later writers, the ^gg always lies in the same position in the oviduct, its cephalic end being turned a m a \ V: A ^ \ d -n \i \ B P. \ Fig. 129. —Eggs of the insect Corixa. [Metschnikoff.] A. Early stage before formation of the embryo, from one side. B. The same viewed in the plane of symmetry. C. The embryo in its final position. a, anterior end; p, posterior; /, left side, r, right; v, ventral, d, dorsal aspect. (These letters refer to the fatal position of the embryo, which is nearly diametrically opposite to that in which it first develops) ; in, micropyle; near/ is the pedicle by which the egg is attached. forwards towards the upper end of the oviduct, and hence towards the head-end of the mother.^ 1 The micropyle usually lies at or near the anterior end, but may be at the posterior. It is a very important fact that the position of the polar bodies varies, being sometimes at the anterior end, sometimes on the side, either dorsal or lateral (Heider, Blochmann).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wilson, Edmund B. (Edmund Beecher), 1856-1939. New York : The Macmillan company
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectcells, bookyear1896
