. A critique of the theory of evolution. Evolution. THEORY OF EVOLUTION 17 world. Hundreds of such embryonic adapta- tions are Ivnown to embryologists. These were explained as adaptations and as falsifications of the ancestral records. At the end of tlie last century Weisniann in-. FiG. 7. Diagram of chick showing relations of amnion, allantois and yolk. (After Ijllie.) jected a new idea into oiu- views concerning the origin of variations. He urged that varia- tions are germinal, they first appear in the egg and tlie sperm as clianges tliat later bring about modifications in the individua
. A critique of the theory of evolution. Evolution. THEORY OF EVOLUTION 17 world. Hundreds of such embryonic adapta- tions are Ivnown to embryologists. These were explained as adaptations and as falsifications of the ancestral records. At the end of tlie last century Weisniann in-. FiG. 7. Diagram of chick showing relations of amnion, allantois and yolk. (After Ijllie.) jected a new idea into oiu- views concerning the origin of variations. He urged that varia- tions are germinal, they first appear in the egg and tlie sperm as clianges tliat later bring about modifications in the individual. The idea has been fruitful and is generally accepted by most biologists today. It means that the. 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 Morgan, Thomas Hunt, 1866-; Princeton University. Louis Clark Vanuxem Foundation. Princeton University Press; [etc. ]
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectevoluti, bookyear1916
