Luther Burbank was past sixty before he could find the time he desired for the making of exact records of his innumerable and unique experiments with plants; he was seventy before the itch that had always been on him to express on paper his thoughts, reactions, observations, and philosophies could be even in slight measure gratified.
Unquestionably if he had lived he would have poured forth his naturalist's soul, and the last years would have been productive of exhilarating, pungent, and enlightening essays and books that would have greatly enriched our literature of through and comment.
What is saved of all the treasure he had stored happens to be this volume.
