APPENDIX II. 363 



Part of the Geology of the Voyage of the ' Beagle.' 8vo. London, 



1842. 

 The Structure and Distribution of Coral Reefs. 2nd edition. 8vo. 



London, 1874. 

 Geological Observations on the Volcanic Islands, visited during the 



Voyage of H.M.S. 'Beagle.' Being the Second Part of the 



Geology of the Voyage of the 'Beagle.' 8vo. London, 1844. 

 Geological Observations on South America. Being the Third Part 



of the Geology of the Voyage of the 'Beagle.' 8vo. London, 



1846. 

 Geological Observations on the Volcanic Islands and parts of South 



America visited during the Voyage of H.M.S. ' Beagle.' 2nd 



edition. 8vo. London, 1876. 

 A Monograph of the Fossil Lepadidae; or, Pedunculated Cirri- 



pedes of Great Britain. 4to. London, 1851. (Palaeontographical 



Society.) 

 A Monograph of the Sub-class Cirripedia, with Figures of all the 



Species. The Lepadidae ; or, Pedunculated Cirripedes. 8vo. 



London, 1851. (Ray Society.) 

 The Balanidae (or Sessile Cirripedes) ; the Verrucidag, &c. 



8vo. London, 1854. (Ray Society.) 

 A Monograph of the Fossil Balanidae and Vermcidse of Great 



Britain. 4to. London, 1854. (Palaeontographical Society.) 

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



Preservation of Favoured Races in the Struggle for Life. 8vo. 



London, 1859. (Dated Oct. ist, 1859, published Nov. 24, 1859.) 



Fifth thousand. 8vo. London, 1860. 



Third edition, with additions and corrections. (Seventh thou- 

 sand.) 8vo. London, 1861. (Dated March, 1861.) 



Fourth edition, with additions and corrections. (Eighth 



thousand.) 8vo. London, 1866. (Dated June, 1866.) 



Fifth edition, with additions and corrections. (Tenth thou- 



sand.) 8vo. London, 1869. (Dated May, 1869.) 

 Sixth edition, with additions and corrections to 1872. 



(Twenty-fourth thousand.) 8vo. London, 1882. (Dated Jan., 



1872.) 

 On the various contrivances by which Orchids are fertilised by 



Insects. 8vo. London, 1862. 

 Second edition. 8vo. London, 1877. [In the second edition 



the word " On " is omitted from the title.] 



