Over the years I have written a number of pieces on or related to Wallace, and will be adding to the tally in the near future. Following are links to html versions of some of these works:

• "Alfred Russel Wallace: Contributions to Astronomy" (preprint of an article published in Thomas Hockey et al., editors, The Biographical Encyclopedia of Astronomers, (Springer, 2007), Volume 2)
  
  
• Alfred Russel Wallace: Evolution of an Evolutionist (an online monograph completed 2003-2006)
  
  
• "Alfred Russel Wallace, Past and Future" (an address published in 2005)
  
  
• "Wallace's Unfinished Business" (preprint of an essay published in late 2004)
  
  
• "Alfred Russel Wallace on Man: A Famous 'Change of Mind'--Or Not?" (preprint of an essay published in late 2004)
  
  
• "Wallace's 'Second Moment': Intelligent Conviction and the Course of Human Evolution" (a lengthy essay previewing Chapter Five of my online book Alfred Russel Wallace: Evolution of an Evolutionist)
  
  
• "Introduction" to Volume One of Alfred Russel Wallace: Writings on Evolution, 1843-1912 (Introduction to Volume One of the three volume set published in January 2004)
  
  
• "COMMENT: Alfred Russel Wallace, Societal Planning and Environmental Agenda" (a paper published in 2003)
  
  
• review of Infinite Tropics: An Alfred Russel Wallace Anthology (a book review published in 2002)
  
  
• Wallace, Alfred Russel (1823-1913) (a bibliographic page created in 2002 for the online service The Infography)
  
  
• "Wallace, Alfred Russel (1823-1913)" (from The Dictionary of Nineteenth-Century British Philosophers (Thoemmes Press, 2002), Volume 2)
  
  
• Alfred Russel Wallace on Spiritualism, Man, and Evolution: An Analytical Essay (a monographic essay printed privately in 1992, and lightly revised when adapted to html in 1999)
  
  
• "Alfred Russel Wallace on Evolution: A Change of Mind?" (a paper presented at a symposium in 1999)
  
  
• "'It's on the Web...'--Or, When is a 'Russel' a 'Russel'?" (an essay composed in 1998)
  
  
• "Historical Biogeography: Geography as Evolution, Evolution as Geography" (a paper published in 1989) 
  
  
• "A Contribution to the Geographical Interpretation of Biological Change" (a paper published in 1986)