Frog Development (1897): 1 Formation of the Sex-cells | 2 Polar Bodies and Fertilization | 3 Cross-fertilization Experiments | 4 Egg Cleavage | 5 Early Embryo | 6 Germ-layers | 7 Abnormal Embryos with Spina Bifida | 8 Pfluger's Experiments | 9 Born and Roux Experiments | 10 Cleavage Modification | 11 Effect of Blastomere Injury | 12 Interpretations of Experiments | 13 Endoderm | 14 Mesoderm | 15 Ectoderm | 16 Temperature and Light Effects | Literature | Figures
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