176 CULTIVATED VEGETABLES. 



without heat, one gallon of oil ; and with 

 heat, a much larger quantity, but of inferior 

 quality. It has been justly supposed, that? 

 from a successful prosecution of this manu- 

 facture, the Colonies may not only be able 

 to supply their own consumption, in lieu of 

 the olive oil annually imported from Europe, 

 but even make it a considerable article of 

 export. 



