. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. THE BRAIN 149 vein (Lillie, igo8, p. 368) was dissected from the mid-ventral line and is drawn (Plate VI, fig. I, uv) pulled over to the left side with a piece of the body-wall to which it was attached. The latter is cup-shaped because it enveloped a protuberance on the ventral side of the yolk sac. COMPARATIVE STUDIES IN DEVELOPMENT THE BRAIN This commences in penguin embryos, as in most other vertebrates, with the formation of longitudinal medullary folds. They are wider apart both anteriorly


. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. THE BRAIN 149 vein (Lillie, igo8, p. 368) was dissected from the mid-ventral line and is drawn (Plate VI, fig. I, uv) pulled over to the left side with a piece of the body-wall to which it was attached. The latter is cup-shaped because it enveloped a protuberance on the ventral side of the yolk sac. COMPARATIVE STUDIES IN DEVELOPMENT THE BRAIN This commences in penguin embryos, as in most other vertebrates, with the formation of longitudinal medullary folds. They are wider apart both anteriorly and posteriorly than the corresponding stage in the development of the fowl. The medullary folds quickly unite to form a neural tube out of which the compartments of the brain dif- ferentiate. By the time stage 31 is reached, NT 31, the hemispheres, optic lobes, and w. 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 Institute of Oceanographic Sciences (Great Britain); National Institute of Oceanography of Great Britain; Great Britain. Colonial Office. Discovery Committee. London ; New York : Cambridge University Press


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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti