WATSON JAMES D.: (1928-2025) American molecular biologist, co-author with Francis Crick of the academic paper proposing the double helix structure of the DNA molecule. Nobel Prize winner in Physiology or Medicine, 1962. Book signed, being a paperback edition of The Double Helix, First Atheneum paperback edition, published by Atheneum, New York, 1980. Signed by Watson in black ink with his name alone to the title page. VG