text:  We shall now proceed to assess the mercantile profits respectively upon the sums-total of foreign and colonial trade by the correct standard; and then we shall endeavour to arrive at a rough but approximate estimate of the value respectively of foreign and colonial export trade in respect of the descriptions of commodities exported from this country classified as finished or partly finished in cases where the raw material is wholly or partially of foreign origin and measured accordingly by the amount of profit on capital and profit in the shape of wages which each leave respectively in the country