Journal of experimental zoology . 319 PLATE 2 EXPLANATION OF FIGURES 16 to 34 All drawings from free-hand sketches. 16 Monaster egg with protoplasmic ball thrown off. 17 Egg after treatment with phenyl urethane, two nuclei present. 18 Pseudotetraster egg. 19 Pseudotetraster egg after division. 20 to 22 Two-, four- and eight-cell stages of the same egg. 23 to 25 Two-, four- and eight-cell stages of egg treated with phenyl to 28 Same as to 31 Same as above. 32 to 34 Cleavage of egg treated with phenyl urethane. Two micromercswere produced in the four-cell stage. 320 PLATE 2
Journal of experimental zoology . 319 PLATE 2 EXPLANATION OF FIGURES 16 to 34 All drawings from free-hand sketches. 16 Monaster egg with protoplasmic ball thrown off. 17 Egg after treatment with phenyl urethane, two nuclei present. 18 Pseudotetraster egg. 19 Pseudotetraster egg after division. 20 to 22 Two-, four- and eight-cell stages of the same egg. 23 to 25 Two-, four- and eight-cell stages of egg treated with phenyl to 28 Same as to 31 Same as above. 32 to 34 Cleavage of egg treated with phenyl urethane. Two micromercswere produced in the four-cell stage. 320 PLATE 2 STUDY IN CLEAVAGE THEOPHILCS S. PAINTEK
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1904
