pt. 1. The world frontier: Roman colonization and the frontier hypothesis / Paul L. MacKendrick
The Mediterranean frontiers, 1000-1400 / Robert L. Reynolds
The frontiers of Hispanic America / Silvio Zavala
If Turner had looked at Canada, Australia, and New Zealand when he wrote about the West / A.L. Burt
Russian expansion in the Far East in the light of the Turner hypothesis / A. Lobanov-Rostovsky
Chinese Mandarins and Western traders: the effect of the frontier in Chinese history / Eugene P. Boardman
The Western world frontier / Walter Prescott Webb
pt. 2. The American frontier: The Southern frontier, an interpretation / Thomas Perkins Abernethy
Frontier estate builders and farm laborers / Paul W. Gates
Classics on the Midwest frontier / Walter A. Agard
Language on the American frontier / Frederic G. Cassidy
Mark Twain as an interpreter of the Far West: the structure of Roughing it / Henry Nash Smith
The backwash of the frontier: the impact of the Indian on American culture / A. Irving Hallowell.