hich 



CHAPTER VIII 



EFFORT AND ACCOMPLISHMENT 



UT we have not yet solved 

 all the mysteries of the 

 flowers, for we shall find 

 many odd contrivances 

 and bewildering habits 

 are explicable only as 

 accessory to the great, central 

 purpose of cross-fertilisation. 

 And we have not yet fully 

 examined the various lures 

 whereby the flowers attract 

 their insect guests. Nor have 

 we discovered in what manner 

 the pollen conveys to the pas- 

 sive ovule that electric impulse 

 which shall endow it with life. 



The student has by this time surely come to look 



188 



