. Embryology of insects and myriapods; the developmental history of insects, centipedes, and millepedes from egg desposition [!] to hatching. Embryology -- Insects; Embryology -- Myriapoda. 260 EMBRYOLOGY OF INSECTS AND MYRIAPODS l:)ody, whereas Stevens stated that there is but one maturation division without reduction. In the second and third cleavage stages (Fig. 182) Toth found no nuclei in the egg center. In the four-nucleate stage the egg follicle still retains its connection with the nutritive chamber by means of plasmatic strands as in the acrotrophic type of egg tube generally (Fig. 18
. Embryology of insects and myriapods; the developmental history of insects, centipedes, and millepedes from egg desposition [!] to hatching. Embryology -- Insects; Embryology -- Myriapoda. 260 EMBRYOLOGY OF INSECTS AND MYRIAPODS l:)ody, whereas Stevens stated that there is but one maturation division without reduction. In the second and third cleavage stages (Fig. 182) Toth found no nuclei in the egg center. In the four-nucleate stage the egg follicle still retains its connection with the nutritive chamber by means of plasmatic strands as in the acrotrophic type of egg tube generally (Fig. 182), but shortly afterward the embryo is completely cut off from the nutritive, or end, chamber. In the fourth or fifth cleavage one of the dividing nuclei may lie with the axis of its spindle perpendicular to the egg surface, thus giving rise to a nucleus surrounded by plasma lying in. 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 Johannsen, O. A. (Oskar Augustus), 1870-1961; Butt, Ferdinand Hinckley, 1899-. New York, London, McGraw-Hill Book Company, inc.
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