The high duties upon the importation of foreign corn, which, in years of moderate plenty, amount to a prohibition; and the absolute prohibition of the importation, either of live cattle, or of salt provisions, which takes place in the ordinary state of the law, and which, on account of the scarcity, is at present suspended for a limited time with regard to Ireland and the British plantations, have all had the bad effects of taxes upon the necessaries of life, and produce no revenue to government.