48 EXPERIMENTS 



EXPERIMENT NO. 3. 



In the fall of 1803, 1 planted 45 trees in a lot ad- 

 joining to No. 2, distances 50 feet: the trees were 

 not so large as the others, but the ground being un- 

 der constant cultivation, they grew rapidly ; only one 

 of them died the first season the drought of the follow- 

 ing summer, which proved so injurious to their neigh- 

 bours in the clover ground, did not injure them. It 

 was my observation on the effect produced by culti- 

 vation on the growth of these trees, that first led me 

 to change the mode of treating my young orchards 

 'his orchard (in 1816) continues to exhibit the com- 

 parative superiority, which early and constant culti- 

 vation gave it over the adjoining ones ; it is now un- 

 commonly flourishing aud productive. 



EXPERIMENT NO. 4. 



In November 1804, 1 planted 484 trees on 10 acres 

 of light sandy loam, which had been sown with clover 

 after manuring with ashes ; and had then been two 

 years without ploughing. The holes were wide, two 

 spits deep, the lowest spit thrown away, and its place 

 supplied by compost manure, made principally of sta- 

 ble dung and river mud, with a portion of lime : about 



