June 8, 2007: flowers in the Caltech campus gardens

June 14, 2012: Avogadro is a very regal fluffy cat

June 15, 2012: Anna returning to her seat with her diploma

June 15, 2012: Anna with her diploma

June 16, 2012: Boltzmann is a very quiet cat

June 17, 2012: Avogadro is a fluffy cat with no dignity