William Tatem Tilden II, tennis tycoon, conducted a round-robin tournament with a group of youngsters at Augusta, Ga. For the first time in many a year there were sweating battles to determine who should be members of the U. S. Davis Cup team. The following were picked last week to play in the first match against Mexico:
John Hennessey, 27, a Tennessee inhabitant of Indianapolis, who was the only one to lose no matches in the round-robin ;
Arnold W. Jones, 24, Yale graduate from Providence, R. I., handsome tennis technician;
Wilmer Allison, 73, student...