December 22nd: Began the last chapter of "Variation under Domestication."
1867.
November 15th: Finished revises of "Variation under Domestication."
December: Began papers on Illegitimate Unions of Dimorphic and Trimorphic Plants, and on Primula.
1868.
January 30th: Publication of "Variation under Domestication."
February 4th: Began work on Man.
February 10th: New edition of "Variation under Domestication." Read papers on Illegitimate Unions of Dimorphic and Trimorphic Plants, and on Verbascum.
1869.
February 10th: "Finished fifth edition of 'Origin'; has taken me forty-six days."