. The eggs of mammals. Ovum; Embryology -- Mammals; Mammals -- physiology; Ovum. Fig. 17 Fig. 18 Fig. 19 Fig. 20. Fig. 23 Fig. 24 Plate II. (From the Journal of Morphology) Figs. 17-22. Nuclei of ova from ovary of rat 20 days post partum. 17, Deuto- broch nucleus. 18, Beginning of the formation of clumps shown in next figure. 19, Modified pachynema. 20, Later stage showing characters of diplonema. 21, Nu- cleus toward the end of the growth period. 22, Final stage in twenty-day rat. Fig. 23. Nucleus in mature follicle from adult rat. Fig. 24. Nucleus from ripe follicle from adult rat. 13. Pleas


. The eggs of mammals. Ovum; Embryology -- Mammals; Mammals -- physiology; Ovum. Fig. 17 Fig. 18 Fig. 19 Fig. 20. Fig. 23 Fig. 24 Plate II. (From the Journal of Morphology) Figs. 17-22. Nuclei of ova from ovary of rat 20 days post partum. 17, Deuto- broch nucleus. 18, Beginning of the formation of clumps shown in next figure. 19, Modified pachynema. 20, Later stage showing characters of diplonema. 21, Nu- cleus toward the end of the growth period. 22, Final stage in twenty-day rat. Fig. 23. Nucleus in mature follicle from adult rat. Fig. 24. Nucleus from ripe follicle from adult rat. 13. 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 Pincus, Gregory, 1903-1967. New York, The Macmillan Company


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