This small volume contains the lectures delivered by Vignes and Blechmann at the Maternité de la Charité. The first part, by Vignes, deals with the physiology of the premature infant and includes a description of the prenatal and postnatal growth of the body and the various internal organs, chemical analyses and studies on digestion, the regulation of temperature and respiration. The second part, by Blechmann, covers the clinical considerations involved in the care of premature infants, such as general hygiene, feeding and common disorders and their treatment. The treatise is based on sound scientific principles and is concise and interesting. It is recommended for physicians dealing with premature infants.