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...te the regressive changes of the mitochondria. fig. 99, X 15,000. Inset, X 114,000. ...emely important because it implies that the mitochondrial endowment of the embryo is exclusively maternal in derivation.

...e pulli in ovo (London: Joannem Martyn, 1673).|Cover Illustration: Chicken embryo, from M. Malp Dissertatio epistolica de formatione pulli in ovo (London: Jo Cover Illustration: Chicken embryo, from M. Malp Dissertatio epistolica de formatione pulli in ovo (London: Jo

...d in a majority of gilts in which all of the uterus was removed except one embryo and its corresponding portion of uterine horn on the 12th day of pregnancy. The Corpus Luteum of Pregnancy As It Is in Swine. Carnegie Inst. Contr. Embryol. 5: 69.

Fuss, A. 1911. Uber extraregioniaire Geschlechtzellen bei einem Menschhchen Embryo von vier wochen. Anat. Am. 39, 407. Gregory, P. W. 1930. The early embryology of the rabbit. Carnegie Inst. Wash. Contrib. to Embryol. 21, 141.

...after the 60 mm embryo stage|Plate 13. Placental structure after the 60 mm embryo stage.]] The numerous contributions from the Carnegie Laboratory of Embryology on implantation of the blastocyst and on placental

...e, it was nevertheless apparent that a venous injection of the body of the embryo was often produced, and the impression was gained that a communication exis ...om the mouth, reaching it by way of the Eustachian tube. Using, in the pig embryo, the heart as the mechanism for injecting the ink, extravasation from the c

Carnegie Institution of Washington ...n of data was made by the statistical staff of the Department of Genetics, Carnegie Institution of Washington (Cold Spring Harbor, Long Island), and by Mr. Wil

embryo without the cooperation of the female, and whether the result is male of a portion of the vaginal canals and associated structures (figs. 34, 35, 114).

Department of Embryology, Carnegie Institution of Washington, Baltimore, Maryland ...ovulationem, leaving only five and one-half days‘ actual development of the embryo to birth. The rate of development is compared with Eutherian mammals.

namely, is there a separate germinal plasm set apart in the early embryo which used to refer to those germ cells which possibly segregate early in the embryo,

...the card attached to the cage and gave the time from which the age of the embryo or respective stage was reckoned. The time given is, therefore, that of 'in ...the ectodermal node. It represents the anlage of the true ectoderm of the embryo, as may here be stated in anticipation of further description. In all of th

...mparatively recent years three authors have been so fortunate as to obtain embryo monotremes, on the skull of which they have worked. Fig. 1. - ''Ornithorhynchus paradoxus''. Embryo delta. J. T. Wilson Coll. Ventral aspect of a model of the

embryo (Heuser and Streeter, 1941 ; Hertig embryo extract prepared from 19- to 20day-old guinea pig embryos (Blandau and

Carnegie Institution Of Washington, Department Of Embryology, The Johns Hopkins Univ in the embryo is controlled by a hormone,

...yolk. This substance contains the principal foodstuffs for the developing embryo. Studies on the yolk of the hen’s egg indicate that it contains water (50 ...ter chapters that the animal pole marks the anterior end of the developing embryo and the vegetal pole marks the posterior end. There is also reason to belie

the development of the embryo. was 114 days for normal gilts and 124.5

structural relationships between the developing embryo and the uterus. These comprise a succession of stages of placental metabolic demands of the developing embryo and fetus.

Washington, D. C. Published by the Carnegie Institution of Washington Carnegie Institution Of Washington, Publication No. 142

WASHINGTON, D. C. Published by the Carnegie Institution of Washington 1911 Carnegie Institution of Washington, Publication No. 142

...p. 1391. Corner, G. W. 1915 Corpus luteum of pregnancy as it is in swine. Carnegie ...ctomjr in relation to the secondary sex characters of some domestic birds. Carnegie Inst. Washington, 243. Hegar, K. 1910 Studien zur Histogenese des Corpus lu