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I HAVE known Roy Richard Grinker, Sr., since 1916, when I began to work with his father. Dr. Julius Grinker occasionally dined in our fraternity house and talked to us about diseases of the nervous system with C. Judson Herrick and George Bartelmez. He was a very good teacher and a very kind man. During my three years with him he made only one mistake. He held me up as an example to Roy so that Roy came to detest me! Later I pulled a stupid blunder which made things worse. One day Roy came to bring some pathological specimens and I stupidly offered him a tip for his trouble. But the effects of those blunders were later laughed at and we became—and have remained—devoted friends during all these years.

After Dr. Julius Grinker died, Roy assumed his private practice but had little opportunity for research. While I was