OBSERVATIONS 



ON 



THE BARRENNESS 



FRUIT TREES, 



AND THE 



MEANS OF PREVENTION AND CURE. 



THIS subject, which has attracted so much 

 attention, and undergone so much investi- 

 gation, seems still involved in great obscu- 

 rity. 



If my observations can throw any light 

 upon it, or tend to lead others to any use- 



