. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. NIPPLE DEVELOPMENT OP MARSUPIALS 83 therefore form " eversion nipples," as we may term them (Fig. 31, b - d). In all Australian. Fig. 31.—Nipple Development of the Marsupials. (Bresslau. ) I. Primary sprouts (primordia of mammary hairs). II. Secondary sprouts which gire rise to milk glands. III. Tertiary sprouts (primordia of sebaceous glands). a, Nipple primordium ; b-d, stages of eversion nipples; e, transition between eversion nipples and proliferation nipples ; f-g, s


. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. NIPPLE DEVELOPMENT OP MARSUPIALS 83 therefore form " eversion nipples," as we may term them (Fig. 31, b - d). In all Australian. Fig. 31.—Nipple Development of the Marsupials. (Bresslau. ) I. Primary sprouts (primordia of mammary hairs). II. Secondary sprouts which gire rise to milk glands. III. Tertiary sprouts (primordia of sebaceous glands). a, Nipple primordium ; b-d, stages of eversion nipples; e, transition between eversion nipples and proliferation nipples ; f-g, stages of proliferation nipples. Marsupialia their development proceeds as follows : The knob-shaped primordia are con-. 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