6 



Account of a Walnut-tree. 



plants upon newly exposed lands, the natural preference of 

 certain species for certain soils, and perhaps the healthful or 

 the noxious effects of some kinds of decomposing vegetables 

 upon certain species of other vegetables, seem worthy of in- 

 quiry. The great mass of agricultural experience shows 

 that each of the products of arable land are favoured, or the 

 contrary, by different soils and manures. 



Wishing the Society the fullest prosperity and encourage- 

 ment, 



I am, my dear Sir, 

 Your obliged and obedient Servant, 



Anthony Carlisle. 



Soho Square, 

 January 10, 1812. 



Since the above was written, I have been informed by our 

 President, that seedling trees of every species, upon which 

 he has made experiments, inherit more or less the habits of 

 their parents, in affording fruit at an earlier or later period : 

 thus the seedling plants, obtained from some varieties of 

 Apple-trees, have afforded fruit when four years old, those of 

 others not till fourteen years old ; and probably the same 

 habits are, to a greater or less extent, hereditary in all trees, 



