Thus, in it was enacted, that wheat might be exported without a licence when the price was so low as six shillings and eightpence: and in it was enacted, that no wheat should be imported if the price was not above six shillings and eightpence the quarter: The legislature had imagined, that when the price was so low, there could be no inconveniency in exportation, but that when it rose higher, it became prudent to allow of importation.