Biographic Memoirs: Volume 63 contains the biographies of deceased members of the National Academy of Sciences and bibliographies of their published works. Each biographical essay was written by a member of the Academy familiar with the professional career of the deceased. For historical and bibliographical purposes, these volumes are worth returning to time and again. Table of ContentsFront MatterContentsPreface1. Thomas Addis2. Dietrich H.F. Bodenstein3. Walter Houser Brattain4. Leonard Eugene Dickson5. Sterling Howard Emerson6. Charlotte Friend7. James Jerome Gibson8. Albert Baird Hastings9. Einar Hille10. Nathan Oram Kaplan11. Wilton Marion Krogman12. Philip Levine13. Bruce Herbert Mahan14. Elliott Waters Montroll15. Earl Leonard Muetterties16. Jerzy Neyman17. John Howard Northrop18. Julia Bowman Robinson19. Howard A. Schneiderman20. Thomas Kilgore SherwoodCumulative Index