I have had the privilege of conversing with Professor palladin on numerous occasions during the last 15 years of his life. In these years, after the age at which most people retire, he was still a most admirable man, with an active interest in science, and a wide and wise approach to its many facets. I was always impressed by his enthusiasm for, and lm. owledge about, studies of the nervous system, both his own and those of others. He was interested...