Vlll 



PEEFACE TO THE TENTH EDITION. 



Ninth 

 Edition. 



Page 



Tenth 

 Edition, 

 Vol. II. 



Additions and Corrections 



Page 



689 



to 



701 



660 



to 



063 



433 



to 

 463 



464 



to 



494 



746 



635 



636 



766 



657 



564 



775 

 to 



797 



579 

 to 

 Oil 



which the species of mammalia, birds, insects, land-shells 

 and plants, agree or do not agree with continental species 

 The identity or non-identity, also, of species of all these 

 classes found in diiferent archipelagos or in different 

 islands of the same archipelago, is shown to hear an un- 

 mistakable relation to the facilities enjoyed by each class 

 of crossing the ocean. The bearing of this relationship 

 on the theory_ of the origin of species by variation and 

 * natural selection ' is pointed out. 



The Forty-second Chapter, on the extinction of species, is 

 re-printed from the old edition with some few additions 

 among which may be mentioned the following :—Dr! 

 Hooker on extermination of plants in St. Helena, pp. 45.3 

 and 462. Mr. Travers on the spread of foreign plants in 

 New Zealand, p. 453. 



The whole of this Forty-third Chapter, on man, considered 

 with reference to his origin and geographical distribution, 

 is new, with the exception of the first five pages. 



The antiquity of the more marked human races, and the 

 coincidence of their geographical range with that of the 



The question 

 The bear- 



chief zoological provinces, is considered. 



as to the multiple origin of man is discussed. 



ing of the theory of progressive development and of 



Darwin's theory of natural selection on the derivation of 



man from the inferior animals, is treated of. 

 Some remarks on the submarine forest at Bournemouth, 



on the south coast of Hampshire, are added. 

 Dr. Dawson's description of a submarine forest on the Bay 



of Fundy is introduced here. 

 A brief sketch is given, in retrospective chronological order, 



of the remains of man and his works which belono' to the 



ages of Bronze and Stone. 



Period 



Implements of the Neolithic 

 of the antecedent Eein-deer Period— and lastly of 

 the Palseohthic Period, are mentioned. The position of 

 iimt tools of Palteolithic age in the drift of the southern 

 coast of Hampshire and the Isle of Wight, is explained. 



Ihe ao'e of the pottery in the upraised marine strata near 

 Cao;liari, on the south coast of Sardinia, is discussed. 



llie J^orty-mnth Chapter is re-printed from the correspond- 

 ing or concluding Chapter of the ninth edition, with some 

 corrections in the nomenclature of corals supplied by Dr. 

 Duncan, and some observations at p. 580 on the depths 

 at which different genera grow. Allusion is also made, 

 p. bO.), to the large quantity of limestone in the oldest or 

 Laurentian series of rocks in Canada. 



73 Harley Street, London 



March 1, 1 868. 



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