EXPERIMENTAL EVOLUTION I2l 



obtain new strains of oats yielding as much as 14 bushels 

 per acre more than the variety from which they were de- 

 rived, and to produce new strains of corn not only giving 

 a larger yield, but maturing nearly two weeks earlier than 

 the parent variety. 



FIG. 63. Linnaeus, the great classifier (1707-1778). He is wearing a 

 sprig of the twin-flower (Linnaa borealis), one of his favorite flowers, and 

 named after him by his friend, Gronovius. He is regarded as the father 

 of modern systematic botany. 



95. Classification. Mere information is not science. 

 A "book of facts" is not a scientific treatise for it is com- 

 posed of bits of unrelated information, presented on some 

 artificial basis of sequence, as for example, alphabetically. 



