ADVANCED STATE OF HORTICULTUEAL SCIENCE. 43 



Such a proficiency is only attained among farmers by a 

 certain class here and there, who have been educated to 

 study the principles of their profession, precisely as the 

 lawyer, the physician, and the divine study the principles of 

 theirs. Associations of these learned professions have long 

 been diligently employed in debating the various means of 

 advancing their interests, and otherwise educating themselves 

 to their respective callings, while agriculture has been, com 

 paratively, standing still. 



y 



&quot;The Wealth of Orchards,&quot; etc. 



With horticulturists so situated that they have been able 

 to avail themselves of the benefits of discussion, the attrition 

 of mind against mind has made business men of them; has 

 enlarged their ideas in various ways; and has led them to 

 examine the principles and details of their aft, and the studies 

 relating thereto. They have made themselves especially con 

 versant with botany and vegetable physiology, the effects of 

 root and twig pruning, the circulation of the sap, fungous and 

 other parasitic growths, the relation of the leaf and bark to 



