1913 (Dec.11) autographed letter to 'Silas' Wright from J.J. Thomson on 'Cavendish Laboratory, Cambridge' letterhead, thanking Wright for a gift to the Laboratory of equipment that had been used during the scientific experiments in the Antarctic. Thomson was chosen to be the third Cavendish Professor in 1884. He presided over a flourishing of experimental physics at the Cavendish. Supported by his administration and teaching, many important experiments on electromagnetism and atomic particles were performed and many outstanding physicists received their early training, including seven Nobel prize winners and 27 Fellows of the Royal Society. In 1906 he was awarded the Nobel prize in physics for his researches into the discharge of electricity in gases.