[14] Lippert, Kulturgeschichte der Menschheit. Stuttgart, 1886, II, p. 302.

[15] Lippert, l. c. II, p. 522.

[16] Römische Geschichte. Sixth Edition. Berlin, 1874, I, p. 17.

[17] Ratzel, l. c. II, p. 518.

[18] Ratzel, l. c. I, p. 425.

[19] Ratzel, l. c. II, p. 545.

[20] Ratzel, l. c. II, pp. 390–1.

[21] Ratzel, l. c. II, pp. 390–1.

[22] Lippert, l. c. I, p. 471.

[23] Kulischer, “The history of the development of interest from capital.” Jahrbücher für National Œkonomie. III series, vol. 18, p. 318, Jena, 1899: (Says Strabo: “Plunderers and from the scant supplies of their native land covetous of the lands of others.”)