[39] Ib. (1887), pl. 10 (text pp. 165-172).
[40] Berlin, 3 vols. (one made up of maps), 1898-1899.
[41] By this term (Getreidefläche) Engelbrecht designates the area occupied by wheat and other varieties of triticum, rye, oats and barley.
[42] Based on Scherzer, Das wirtschaftliche Leben der Völker, p. 12.
[43] From the Fifth Report of the United States Department of Agriculture, Division of Statistics, Miscellaneous Series, p. 13.
[44] Based on the Corn Trade Year-book (1904), p. 284.
[45] Exclusive of Bosnia and Herzegovina, in which the average production in 1894-1903 was about 2½ million bushels.
[46] The estimates for Bulgaria, Rumania, Servia and Turkey in Europe for 1872-1876 are not comparable with those of the two later periods on account of the territorial changes since that date. Those for Bulgaria in the period 1881-1890 include Eastern Rumelia.
[47] Including Poland.
[48] Spanish statistics very imperfect.