FACTOID # 72: There are 22 countries where more than half the population is illiterate. Fifteen of them are in Africa.
 
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Encyclopedia > On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection

Two scientific papers; On the Tendency of Species to form Varieties by Alfred Russel Wallace and on the Perpetuation of Varieties and Species by Natural Means of Selection by Charles Darwin were presented to the Linnean Society of London in 1858 that first publicised Darwin — Wallace theory of evolution by natural selection. Darwin's On the Origin of Species would follow a year later.

Contents

External links

  • Copy of paper (http://www.inform.umd.edu/PBIO/darwin/dw01.html)
  • Life and Letters of Charles Darwin (http://pages.britishlibrary.net/charles.darwin/texts/letters/letters1_fm.html) - edited by Francis Darwin

 

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