EXPERIMENTAL EVOLUTION 121 



obtain new strains of oats 3delding 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 {LinncBa 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. 



