natural selection

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Divergent evolution and the Darwinian theory
J. T. Gulick

American Journal of Science January 1890, s3-39 (229) 21-30; DOI: https://doi.org/10.2475/ajs.s3-39.229.21
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Asa Gray
James D. Dana

American Journal of Science March 1888, s3-35 (207) 181-203; DOI: https://doi.org/10.2475/ajs.s3-35.207.181
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Review of Darwin's theory on the origin of species by means of natural selection
Anonymous

American Journal of Science March 1860, s2-29 (86) 153-184; DOI: https://doi.org/10.2475/ajs.s2-29.86.153

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