Section All articles the produce or manufacture of either country, not herein-after enumerated as subject to specific duties, shall be imported into each country from the other, duty free, other than the countervailing duties in the Schedule No. 1. or to such as shall hereafter be imposed by the united Parliament;

That all articles, the Growth, Produce or Manufacture of either Country (not herein-after enumerated as subject to specific duties), shall from thenceforth be imported into each country from the other free from duty other than such countervailing duties . . . F1 as shall hereafter be imposed by the Parliament of the United Kingdom, in the manner herein-after provided; . . . F2