. Der Mensch, sein Ursprung und seine Entwicklung, in gemeinverständlicher Darstellung. Human beings; Evolution. Fig. 68. Becken eines Huhnes. Fig. 69. Beclsen eines Vogel- embryo (nach Mehnert).. Fig. 70. Beclien eines Dinosauriers (Ceratosaurus, nach Marsh.) Fig. 71. Beclien eines Dinosauriers (Stegosaurus, nach Marsli).. 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 Leche, Wilhelm, 1850-1927. Jena, G. Fischer

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