RECORDING THE EXPERIMENTS 



EASY WAYS TO KEEP TRACK 

 OF PROGRESS 



EVERY ONE has heard the story of the 

 distinguished professor who devoted his 

 entire life to the study of a particular 

 species of mite, and who, on his deathbed, 

 regretted that he had not confined his attention 

 to the study of the respiratory organs of this 

 insect, instead of trying to comprehend its entire 

 structure. 



This specialist, like many another, felt that he 

 had wasted his energy by attempting to cover too 

 wide a field. He felt that his ten volumes or so 

 on the anatomy of the mite could give but super- 

 ficial treatment of a great subject. 



Whoever sympathizes with the attitude of mind 

 revealed by this doubtless apocryphal yet truly 

 symbolic tale, will have scant patience with my 

 method of plant experimentation. For, far from 

 confining attention to a single species, or even to 



[VOLUME III CHAPTER VIII] 



