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We find examples in Nägeli’s large and comprehensive work, “Mechanisch-physikalische Theorie der Abstammungslehre”; and, before him, in Wigand’s “Darwinismus und die Naturforschung Newton’s und Cuvier’s”; in von Kölliker’s “Heterogenesis”; in von Baer’s “Endeavour after an End”; in the chapter added by the translator, Bronn, to the first German edition of the “Origin of Species,” where he urges weighty objections against the theory of selection, and refers to the “innate impulse to development, persistently varying in a definite direction”; in Askenasy’s oft-quoted “Beiträge zur Kritik der Darwinschen Lehre,” also referring to “variation in a definite direction,” for instance, in flowers; in Delpino’s views, and in the works of many other older writers.
The names of Cuvier’s classes and orders, Plantigrades, Digitigrades, etc., are as much the expression of attributes as if those names had preceded, instead of grown out of, his classification of animals.
The names of Cuvier’s classes and orders, Plantigrades, Digitigrades, &c., are as much the expression of attributes as if those names had preceded, instead of growing out of, his classification of animals.
This actually occurs with respect to one of the preceding examples, “Man is a mammiferous animal having two hands,” which is the scientific definition of man considered as one of the species in Cuvier’s distribution of the animal kingdom.
With this view he finds it advisable that one of his fundamental divisions should be into warm-blooded and cold-blooded animals; or into animals which breathe with lungs and those which breathe with gills; or into carnivorous, and frugivorous or graminivorous; or into those which walk on the flat part and those which walk on the extremity of the foot, a distinction on which some of Cuvier’s families are founded.
With this view he finds it advisable that one of his fundamental divisions should be into warm-blooded and cold-blooded animals; or into animals which breathe with lungs and those which breathe with gills; or into carnivorous, and frugivorous or graminivorous; or into those which walk on the flat part and those which walk on the extremity of the foot, a distinction on which two of Cuvier’s families are founded.
This actually occurs with respect to one of the preceding examples, “Man is a mammiferous animal having two hands,” which is the scientific definition of man, considered as one of the species in Cuvier’s distribution of the animal kingdom.
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