Comment on `Symmetrical Temperature-Chaos effect with Positive and   Negative Temperature Shifts in a Spin Glass'
  Comment on the paper P. E. Jonsson, H. Yoshino, and P. Nordblad, Phys. Rev. Lett. 89, 097201 (2002), also cond-mat/0203444. 
Ludovic Berthier, Jean-Philippe Bouchaud