Clines: an Auxiliary Taxonomic Principle

@article{Huxley1938ClinesAA,
  title={Clines: an Auxiliary Taxonomic Principle},
  author={Julian Sorell Huxley},
  journal={Nature},
  year={1938},
  volume={142},
  pages={219-220}
}
MODERN taxonomy, after a phase of 'splitting', adopted the integrating principle of geographical replacement, thus uniting numerous forms previously styled species as geographical races or subspecies of a polytypic species or Formenkreis1. It seems desirable, however, to go still further in the direction of synthesis. The naming and description of sub specific forms, however necessary, is not sufficient. Further, if not supplemented by some other method, it has two actual disadvantages–it… 

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