Appendix. 265 



On the Origin of Species by Means of Natural Selection, or the 

 Preservation of Favoured Races in the Struggle for Life. 5th 

 edition, with additions and corrections. (Tenth thousand.) 8vo. 

 London, 1869. (Dated May, 1869.) 



On the Origin of Species by Means of Natural Selection, or the 

 Preservation of Favoured Races in the Struggle for Life. 6th 

 edition, with additions and corrections to 1872. (Twenty-fourth 

 thousand.) 8vo. London, 1882. (Dated January, 1872.) 



On the Various Contrivances by which Orchids are Fertilised by 

 Insects. 8vo. London, 1862. 



The Various Contrivances by which Orchids are Fertilised by In- 

 sects. 2d edition. 8vo. London, 1887. [In the second edition the 

 word " On " is omitted from the title.] 



The Movements and Habits of Climbing Plants. 2d edition. 

 8vo. London, 1875. [First appeared in the ninth volume of the 

 Journal of the Linnczan Society J\ 



The Variation of Animals and Plants under Domestication. 2 

 vols. 8vo. London, 1868. 



The Variation of Animals and Plants under Domestication. 2d 

 edition, revised. 2 vols. 8vo. London, 1875. 



The Descent of Man, and Selection in Relation to Sex. 2 vcls. 

 8vo. London, 1871. 



The Descent of Man, and Selection in Relation to Sex. 2d 

 edition. 8vo. London, 1874. (In I vol.) 



The Expression of the Emotions in Man and Animals. 8vo. Lon- 

 don, 1872. 



Insectivorous Plants. 8vo. London, 1875. 



The Effects of Cross- and Self-Fertilisation in the Vegetable 

 Kingdom. 8vo. London, 1876. 



The Effects of Cross- and Self-Fertilisation in the Vegetable 

 Kingdom. 2d edition. 8vo. London, 1878. 



The Different Forms of Flowers on Plants of the Same Species. 

 8vo. London, 1877. 



The Different Forms of Flowers on Plants of the Same Species. 

 2d edition. 8vo. London, 1880. 



The Power of Movement in Plants. By Charles Darwin, assisted 

 by Francis Darwin. 8vo. London, 1880. 



The Formation of Vegetable Mould, through the Action of Worms, 

 with Observations on their Habits. 8vo. London, 1881. 



