IRREGULAR NUTRITION 243 



is the ultimate lesson taught by the study of irregular nutrition, 

 and by the morphological degradation of the vegetative system, 

 which so often follows on its successful practice. Propagation is 

 the real end. Vegetative development is only a means to that end. The 

 whole vegetative system may be regarded as a physiological scaffold, 

 while the mechanism of propagation is the substantive building 

 which is erected by means of it. 



