The primary purpose of the monograph is to assemble the data relative to pellagra which have accumulated since the well known work of H. F. Harris, "Pellagra," was published in 1919. The book is intended to provide the physician with information which is accurate and dependable. To accomplish his purpose the author has taken full advantage of his wide clinical experience, gained during the many years which he has devoted to the study of pellagra. The opinions expressed are in most instances in accord with those held by clinicians at present. The author believes that the final word about the cause of pellagra has not yet been written and that the lack of certain intrinsic factors found in the stomach and liver is as important as a deficiency of nicotinic acid in production of pellagra.
Nine collaborators shared in the preparation of the monograph. All of them have played monumental