...The germinal layer of old turtlesloses the capacity to produce color... 
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...The germinal layer of the epidermis probably remains semiactivethroughout life but functions chiefly as a repair mechanismin adults that are no longer growing...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...Wolff had, as Huxley showed, a clear presentiment ofthis cardinal theory, since he recognised small microscopic globules as theelementary parts out of which the germinal layers arose...
Ernst Haeckel 「The Evolution of Man」
...All the best recent research in animal embryology has led to the confirmationand development of Baer and Remak’s theory of the germinal layers...
Ernst Haeckel 「The Evolution of Man」
...The nucleus of the ovum, or the germinal vesicle, isthus pressed right to the surface of the globular ovum, and is embedded therein a small quantity of transparent matter, the so-called white yelk...
Ernst Haeckel 「The Evolution of Man」
...The development of themulticellular organism from the ovum, and the formation of the germinal layersand the tissues, follow the same laws in man and all the higher animals...
Ernst Haeckel 「The Evolution of Man」
...But all the otheranimals—all the tissue-forming animals, or metazoa, as we callthem, in contradistinction to the protozoa—construct real germinal layersby the repeated cleavage of the impregnated ovum...
Ernst Haeckel 「The Evolution of Man」
...Between these twogerminal layers are afterwards developed the middle germinal layer(mesoderma) and the body-cavity (cœloma) filled with blood orlymph...
Ernst Haeckel 「The Evolution of Man」
...The two primary germinal layers were first distinguished by Pander in 1817 inthe incubated chick...
Ernst Haeckel 「The Evolution of Man」
...Twenty years later (1849) Huxley pointed out that in manyof the lower zoophytes, especially the medusæ, the whole body consiststhroughout life of these two primary germinal layers...
Ernst Haeckel 「The Evolution of Man」
...The animalcells produce the external, and the vegetal cells the internal, germinal layer...
Ernst Haeckel 「The Evolution of Man」
...Alsoits outer germinal layer has certain special modifications...
Ernst Haeckel 「The Evolution of Man」
...ak outer germinal layer, ik inner germinal layer,fh segmentation-cavity, ud primitive gut, u primitive mouth,dl and vl dorsal and ventral lips of the mouth, dzyelk-cells...
Ernst Haeckel 「The Evolution of Man」
...The tread, which thus becomes the germinal disk,now has the appearance of an eight-rayed star...
Ernst Haeckel 「The Evolution of Man」
...There is a brisk multiplication of these at theedge of the germinal disk, especially in the neighbourhood of the sickle-shapedprimitive mouth...
Ernst Haeckel 「The Evolution of Man」
...) udprimitive gut, vl, hl fore and hind lips of the primitive mouth (orsickle-edge); ak outer germinal layer, ik inner germinal layer,dk yelk-nuclei, wd white yelk...
Ernst Haeckel 「The Evolution of Man」
...But in the monotremes theformation of the cenogenetic entoderm does not precede the invagination; hencein this case the construction of the germinal layers is less modified than inthe other amniota...
Ernst Haeckel 「The Evolution of Man」
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