A Biography of Henry Clay, the Senator from Kentucky
“ We increase, therefore, in population, at the rate of about four per centum per annum. Supposing the increase of our production to be in the same ratio, we should, every succeeding year, have of surplus produce, four per centum more than that of the preceding year, without taking into the account the differences of seasons which neutralize each other. If, therefore, we are to rely upon the foreign market exclusively, foreign consumption ought to be shown to be increasing in the same ratio of four per centum per annum, if it be an adequate vent for our surplus produce. ”
