32 WHAT IS DARWINISM? 



test, is more accurate, and sometimes is equal- 

 ly convenient." (p. 72). " Slow though the 

 progress of selection may be, if feeble man can 

 do so much by artificial selection, I can see no 

 limit to the amount of change, to the beauty 

 and infinite complexity of the co-adaptations 

 between all organic beings, one with another, 

 and with their physical conditions of life, which 

 may be effected in the long course of time by 

 nature's power of selection, or the survival of 

 the fittest." (p. 125). "It may be objected that 

 if organic beings thus tend to rise in the scale, 

 how is it that throughout the world a multi- 

 tude of the lowest forms still exist ; and how 

 is it that in each great class some forms are 

 far more highly developed than others ? . . . . 

 On our theory the continuous existence of 

 lowly forms offers no difficulty ; for natural 

 selectkm, or the survival of the fittest, does not 

 necessarily include progressive development, 

 it only takes advantage of such variations as 

 arise and are beneficial to each creature under 



its complex relations of life Geology 



tells us that some of the lowest forms, the in- 

 fusoria and rhizopods, have remained for an 

 enormous period in nearly their present state." 

 (p. 145). " The fact of little or no modifica- 



