PANGENESIS. 



177 



Darwin ends his general conclusions with these 

 words : — 



" No other attempt, as far as I am aware, has been made, 

 imperfect as this confessedly is, to connect under one point of 

 view these several grand classes of facts. An organic being is 

 a microcosm — a little universe, formed of a host of self-propa- 

 gating organisms, inconceivably minute and numerous as the 

 stars in heaven." 



