. The development of the frog's egg; an introduction to experimental embryology. Embryology. Fig. 32. — Segmentation of egg enclosed in a tube. (After Hertwig.) A. Four-cell stage. B, C. Eight-cell stage, above and below. the Qgg will be drawn out into a barrel-shaped body and the cleavage correspondingly modified. The results, however, are not always alike. This is probably due to the presence of a large amount of jelly surrounding the eggs, so that they do 1 Hert\Yig found that when unsegmented eggs compressed between parallel plates were rotated so that the white pole was turned ttpward, th


. The development of the frog's egg; an introduction to experimental embryology. Embryology. Fig. 32. — Segmentation of egg enclosed in a tube. (After Hertwig.) A. Four-cell stage. B, C. Eight-cell stage, above and below. the Qgg will be drawn out into a barrel-shaped body and the cleavage correspondingly modified. The results, however, are not always alike. This is probably due to the presence of a large amount of jelly surrounding the eggs, so that they do 1 Hert\Yig found that when unsegmented eggs compressed between parallel plates were rotated so that the white pole was turned ttpward, the egg rotated. 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 Morgan, Thomas Hunt, 1866-1945. New York, The Macmillan company; [etc. , etc. ]


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectembryology, bookyear1