The history of creation, or, The development of the earth and its inhabitants by the action of natural causes : a popular exposition of the doctrine of evolution in general, and of that of Darwin, Goethe and Lamarck in particular . ly,this, that all parts are originally the same in the differentvertebrate animals, and that the variations by which thedifferent classes, orders, families, genera, etc., differ anddeviate from one another, are only gradually developed. There are certainly few parts of the body which are sodifferently constructed as the Imihs or extremities of thevertebrate animals.
The history of creation, or, The development of the earth and its inhabitants by the action of natural causes : a popular exposition of the doctrine of evolution in general, and of that of Darwin, Goethe and Lamarck in particular . ly,this, that all parts are originally the same in the differentvertebrate animals, and that the variations by which thedifferent classes, orders, families, genera, etc., differ anddeviate from one another, are only gradually developed. There are certainly few parts of the body which are sodifferently constructed as the Imihs or extremities of thevertebrate animals. Now, I wish the reader to compare inFig. A—^on Plates II. and III, the four extremities (hv) ofthe embryos with one another, and he will scarcely be ableto perceive any important differences between the humanarm (H hv), the wing of a bird {F hv), the slim foreleg of adog {G hv), and the plump foreleg of the tortoise (E hv). Incomparing the hinder extremities (hh) in these figures hev,i\\ find it equally difficult to distinguish the leg of a man{Hhh), of a bird (Fhh), the hind-leg of a dog (Ghh), andthat of a tortoise (Ehh). The fore as v ell as the hinder PI. II. Germs or Embryos ^ * -«,-W*«fy^-^ t^ -^K»^rj,l / ^4 ^S?.
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Keywords: ., bookauthorlankestererayedwinray, bookcentury1800, bookdecade1880
