Blueprint for Immortality by Harold Saxton Burr presents a scientific exploration of the idea that living organisms are governed by measurable electrical fields that may act as a kind of “life blueprint.” Burr, a Yale neuroanatomist, reports experiments suggesting that plants and animals have stable bioelectric fields that guide growth, development, and regeneration, and he proposes that changes in these fields can reflect or even predict disease before physical symptoms appear. The book explores the possibility that these “fields of life” (which he called L-fields) could be used to understand health, development, and potentially even the boundaries between life and death. While influential in early bioelectric research discussions, many of Burr’s broader claims remain controversial and are not widely accepted in modern mainstream biology.