Migrations. 73 



familiar to the English Christmas table, were intro- 

 duced into Bogota, South America, and they got 

 acclimatized there only after twenty years of effort; 

 so that practically twenty generations were lost, 

 before the little that survived each time had suffi- 

 ciently adapted itself to increase finally and pros- 

 per. 



84. Using the force of this analogy, we need not 

 be surprised at the condition of the settlers in 

 Guadeloupe and Martinique. These islands are 

 the most fatal of the West Indies. After ten gen- 

 erations from their original settlement by Euro- 

 peans, they are still dangerous to the inhabitants. 

 However the population now manages to increase 

 at the annual rate of one-half per cent. Algeria 

 has been but recently colonized, and it is still fatal 

 to Englishmen, Belgians, Germans; but it is be- 

 coming tolerable to the French, Maltese and Span- 

 iards. And so with other places and races. 



85. Notwithstanding the loss of pioneers, and 

 even of generations, the process of acclimatization 

 has ever gone on till the whole globe is 

 well-nigh occupied by the human spe- SSSZL 

 cies. To cite one instance, as M. de 

 Quatrefages describes it, there is the Aryan fam- 

 ily of races to which we belong. It is affirmed by 

 many, though somewhat disputed at present, that 

 this family, so soon to be divided into many dis- 

 tinct races, started from the mountain district of 

 the Bolor and the Hindoo Koosh, where the Mam- 



