'Natural Selection is a joy to read. It is full of insights and subtle observations that never found their way into the Origin.' Science
' ... enables all interested in evolutionary theories to appreciate the background information on which Darwin based the statements he made and the conclusions he reached in the Origin.' New Scientist
An original, unpublished manuscript written before the Origin of Species which contains the references to journal articles and books that Darwin used in formulating his controversial ideas. This volume has been edited and annotated and includes a cross-indexing to the Origin.