. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. ectr FiQ. 74.—Sections of ovum of a rabbit, illustrating formation of the plastodermic vesicle (after E. Van Beneden). A, B, C, Di-are ova in successive stages of development, zp, zona pellu- cida: ect, eotomeres, or outer cells : ent, entomeres, or inner segment. This holoblastic character of the mammalian ovum and its resemblance to the segmentation of those invertebrate forms previously described may become apparent from an ex- amination
. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. ectr FiQ. 74.—Sections of ovum of a rabbit, illustrating formation of the plastodermic vesicle (after E. Van Beneden). A, B, C, Di-are ova in successive stages of development, zp, zona pellu- cida: ect, eotomeres, or outer cells : ent, entomeres, or inner segment. This holoblastic character of the mammalian ovum and its resemblance to the segmentation of those invertebrate forms previously described may become apparent from an ex- amination of the accompanying figures. "We shall return to the development of the mammalian ovum later; in the mean time we present the main features of devel- opment in the bird. Remembering that the development of the embryo proper takes place within the pellucid area only, we point out that the area opaca gradually extends over the entire OATim, inclosing. 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 Mills, Wesley, 1847-1915. New York, D. Appleton
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Keywords: ., bookauthormillswes, bookcentury1800, bookdecade1880, bookyear1889
