. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. 18 MAMMARY APPARATUS OF THE MAMMALIA bloodvessels (Fig. 6c). Internally to the cutis the beginnings of the trunk muscles were distinctly seen. Further, the primordia of the skin muscle were visible as thickenings of the cutis, which extended ventrally on either side as far as the epidermal thickenings. These formations undoubtedly represent the first primordia of the mammary apparatus, the. Fig. 6c.—Echidna: Semon's Embryo. Transverse Section through the Primary-Primordia, show- in
. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. 18 MAMMARY APPARATUS OF THE MAMMALIA bloodvessels (Fig. 6c). Internally to the cutis the beginnings of the trunk muscles were distinctly seen. Further, the primordia of the skin muscle were visible as thickenings of the cutis, which extended ventrally on either side as far as the epidermal thickenings. These formations undoubtedly represent the first primordia of the mammary apparatus, the. Fig. 6c.—Echidna: Semon's Embryo. Transverse Section through the Primary-Primordia, show- ing THE Epidermal Thickening and the Under- lying Condensed Tissue of the Dermis. primary-priniordia as I call them. It occurred to me that they must have been visible in the entire embryo. This supposition admitted of positive proof, thanks to the care with which Semon had his material illustrated. If you look at the drawing (Fig. 5) you will see on the right side of the trunk a white spot (ma), which exactly corresponds to the. 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 Bresslau, E. (Ernst), 1877-; Hill, James Peter, 1873-1954. London : Methuen & Co.
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Keywords: ., bookcentury1900, bookdecade1920, booksu, booksubjectmammaryglands
