Photo, left: 
The Lost World of the Old Ones: Discoveries in the Ancient SouthwestApr 13, 2015 by David Roberts
 
JOHN BATCHELOR SHOW
 
Hour One
Saturday 9 May 2015 / Hour 1, Block A: The Lost World of the Old Ones, by David Roberts  (1 of 4)
Saturday 9 May 2015 / Hour 1, Block B:  The Lost World of the Old Ones, by David Roberts  (2 of 4)
Saturday 9 May 2015 / Hour 1, Block C: The Lost World of the Old Ones, by David Roberts  (3 of 4)
Saturday 9 May 2015 / Hour 1, Block D:  The Lost World of the Old Ones, by David Roberts  (4 of 4)
 
Hour Two
Saturday 9 May 2015 / Hour 2, Block A:  Island on Fire, by Alexandra Witze and Jeff Kanpipe  (1 of 4)
Saturday 9 May 2015 / Hour 2, Block B:  Island on Fire, by Alexandra Witze and Jeff Kanpipe  (2 of 4)
Saturday 9 May 2015 / Hour 2, Block C:  Island on Fire, by Alexandra Witze and Jeff Kanpipe  (3 of 4)
Saturday 9 May 2015 / Hour 2, Block D: Island on Fire, by Alexandra Witze and Jeff Kanpipe  (4 of 4)
 
Hour Three
Saturday 9 May 2015 / Hour 3, Block A:  Atlantic, by Simon Winchester  (1 of 2)
Saturday 9 May 2015 / Hour 3, Block B:  Atlantic, by Simon Winchester  (2 of 2)
Saturday 9 May 2015 / Hour 3, Block C:  Crude Awakening, by Amanda Coyne and Tony Hopfinger   (1 of 2)
Saturday 9 May 2015 / Hour 3, Block D:   Crude Awakening, by Amanda Coyne and Tony Hopfinger   (2 of 2)
 
Hour Four
Saturday 9 May 2015 / Hour 4, Block A:  The Chimp and the River, David Quammen  (1 of 4)
Saturday 9 May 2015 / Hour 4, Block B:  The Chimp and the River, David Quammen  (2 of 4)
Saturday 9 May 2015 / Hour 4, Block C:  The Chimp and the River, David Quammen  (3 of 4)
Saturday 9 May 2015 / Hour 4, Block D:   The Chimp and the River, David Quammen  (4 of 4)
..  ..  ..