--Converted page headings into section titles (shifted to an appropriate paragraph break.) --Moved all promotional material to the end of the book. --In the HTML version, split some illustrations, and rotated others to portrait mode for better display on e-readers. --In the text versions only, represented text font and size variations (the HTML version preserves the presentation of the original): --Text in italics is delimited by _underscores_. --Subscripted numbers are preceded by an underscore, as in the formula for water “H_2O”. --Split genetic tables within paragraphs into separate lines. End of the Project Gutenberg EBook of The Making of Species, by Douglas Dewar and Frank Finn