mine of wealth upon the history of foreign commerce in the eighteenth century, after commenting upon the impossibility of obtaining a just estimate of the value of home trade, alludes to a calculation which places it at thirty-two times the size of the export trade. Macpherson contents himself with concluding that it is "a vast deal greater in value than the whole of the foreign trade."[7] There is every reason to believe that in the case of Holland and France, the only two other European nations with a considerable foreign trade, the same general conclusion will apply.