November 20th: Began "Descent of Man," Edition II.
1874.
"Descent of Man," Edition II, in one volume, published (Preface dated September). "Coral Reefs," Edition II., published.
April 1st: Began "Insectivorous Plants."
February to May: Contributed notes to "Nature."
1875.
July 2nd: "Insectivorous Plants" published (3000 copies); 2700 copies sold immediately.
July 6th: "Correcting 2nd edition of 'Variation under Domestication.'" It was published in the autumn.
September 1st (approximately): Began on "Cross and Self-Fertilisation."
November: Vivisection Commission.