TREATISE ON THE VINE. 



11 



that a treatise on the culture of the Vine would 

 appear deficient without it, I resolved to add the 

 fourth book, expressly for the purpose of illustrat- 

 ing that subject ; and I am willing to hope, that 

 on account of the original hints there given, it will 

 not be deemed the least useful and important part 

 of this treatise. 



The Duke of Portland, after all his other in- 

 dulgences, was pleased to give me free access to 

 His Grace's noble library at this place, which has 

 enabled me to add many important observations in 

 the notes, which cannot fail of being acceptable to 

 the reader. The names of the authors consulted 

 will appear in the respective notes. 



Welbeck, May 1. 1789. 



