Selected by his daughter, Vivien, from Max Perutz's voluminous correspondence, the letters reproduced here portray their author with a spontaneity and directness no autobiography could have matched. They chronicle Perutz's adventurous life through his own vivid, erudite and humorous pen, documenting the hopes, roadblocks and moments of elation of his sixty-year quest to understand the molecular biology of hemoglobin. The first great step in this quest...