HARRY ELTRINGHAM, who died on November 26, was the eldest son of J. T. Eltringham of South Shields, and was born in 1873. Educated at South Shields High School, and then at Durham School, he was destined for a business career with science as a background. His natural leanings to science owed much in his youth to his father's encouragement. He entered Trinity College, Cambridge, in 1891, and took an honours degree in natural science, after which he spent a year in the engineering 'shops' studying mechanical drawing and practical work. His father's shipbuilding business claimed him for some years after, but in 1908 he retired, and devoted himself to the study of insect mimicry, which had already attracted his attention.