j Tonnage ae Nationaljt of Total 49-4 18-0 30:2 Hectares 11,731,420 4,278,059 7,241,720 Arable land . i . 60 Some authorities have given striking results. E12 on one side against the heaviness of his earlier work on a level of the atmosphere. Labour, 1913-7.—The example of European international trade,