. The cell in development and inheritance. Cells. PROMORPHOLOGICAL RELATIONS OF CLEAVAGE 383 the narrow end, according to Watase, representing the dorsal aspect, the broad end the ventral aspect, the flattened side the posterior region, and the more convex side the anterior region. All the early cleavage-furroivs are bilaterally arrajigcd tvitJi respect to the plane of a. Fig. 180. —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; /. posteri
. The cell in development and inheritance. Cells. PROMORPHOLOGICAL RELATIONS OF CLEAVAGE 383 the narrow end, according to Watase, representing the dorsal aspect, the broad end the ventral aspect, the flattened side the posterior region, and the more convex side the anterior region. All the early cleavage-furroivs are bilaterally arrajigcd tvitJi respect to the plane of a. Fig. 180. —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; /. posterior; /. left side, r. right; t'. ventral, d. dorsal aspect. (These letters refer to \\\e: filial position of the embryo, which is nearly diametrically opposite to that in which it first develops) ; m. micropyle; near/ is the pedicle by which the egg is attached. synunctiy in the undivided egg; and the same is true of the later development of all the bilateral parts. Scarcely less striking is the case of the insect , as has been pointed out especially by Hallez, Blochmann, and Wheeler (Figs. 62, 180). In a large number of cases the tgg is elongated and. 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 Macmillan
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectcells, bookyear1906
