3181 to 3192 of 13906 results
-
-
-
The early development of Pygoscelis adeliae(Adélie penguin) up to the formation of the neural tube
Read more of: The early development of Pygoscelis adeliae(Adélie penguin) up to the formation of the neural tubeThe early embryonic development of Pygoscelis adeliae, up to the stage with fused neutral folds, was investigated by means of serial sections and compared with the development of the chick […]
-
-
-
-
-
-
-
A radio echo equipment for depth sounding in polar ice sheets
Read more of: A radio echo equipment for depth sounding in polar ice sheetsThe glaciological need for depth-sounding in glaciers, ice sheets, and ice shelves is discussed. A v.h.f. radar, designed specifically to produce continuous profiles of ice depth is described. Some practical […]
-
-