On the use of Shell-Marl. - 247 



duced the improvement, yet the improvement would 

 have been far short of what it is, if it had not been for 

 the marl, which has contributed, in a very large degree, 

 towards it ; and no small matter in favour of the marl is, 

 that, by the blessing of God on my endeavours, I have, 

 in twelve years, been enabled to improve three hundred 

 acres of ground, to the pitch that these are, and am now 

 in a fair way of increasing in the same ratio that a snow- 

 ball increases as it is turned over. 



I fear you will not be able to read, and hardly to un- 

 derstand, this tedious letter, in many parts ; if you can, 

 and it is in any degree satisfactory to you, I shall be com- 

 pensated, and will cheerfully answer any inquiries, in fu- 

 ture, that you may wish to make. The first favourable 

 opportunity, which may probably be by some friend, in 

 the spring, I propose sending you a small bag of marl s 

 which may be more satisfactory than any description. 

 With every sentiment, &c. 



John Singleton. 



Hon. William Tilghman. 



