CONCLUSIONS FROM THIS STUDY. 41. 
of the plant. Natural factors having a controlling influence on the 
weevil will do their work no less effectively if the intelligent assistance 
of the planter be given in the planting, culture, and subsequent care 
of the crop. Repeated and widely varied experience has proven that 
the intelligent planter can, as a rule, so assist natural factors, by 
adopting certain changes in his methods of cultivation, as to produce 
a profitable crop in the face of conditions which would otherwise have 
insured its failure. 
