...Singularlyenough, the nervous, vascular, and respiratory systems (tracheæ) arewanting, and the alimentary canal is a blind sac, remaining in anindifferent, or unorganized state...
Alpheus Spring Packard 「Our Common Insects」
...The internal articulation of the vertebrates is just as profoundlydifferent from the external metamerism of the articulates as are their skeletalstructure, nervous system, vascular system, and so on...
Ernst Haeckel 「The Evolution of Man」
...The remaining parts—the corpus vitreum (withthe vascular capsule of the lens), the choroid (with the iris), and thesclerotic (with the cornea)—are formed from the middle germinal layer...
Ernst Haeckel 「The Evolution of Man」
...The vascular system in man and all the Craniotes is an elaborate apparatus ofcavities filled with juices or cell-containing fluids...
Ernst Haeckel 「The Evolution of Man」
...We find the vascular system in this very simple formto-day in the Bryozoa, Rotatoria, Nematoda, and other lower Vermalia...
Ernst Haeckel 「The Evolution of Man」
...The further evolution ofthis rudimentary vascular system can be gathered from the class of the Annelidsin which we find it at various stages of development...
Ernst Haeckel 「The Evolution of Man」
...The embryology of all the other parts of the vascular system also gives usabundant and valuable data for the purposes of phylogeny...
Ernst Haeckel 「The Evolution of Man」
...But as one needs athorough knowledge of the intricate structure of the whole vascular system inman and the other Vertebrates in order to follow this with profit, we cannot gointo it further here...
Ernst Haeckel 「The Evolution of Man」
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substitution rumour gruesome
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