Respiration in Infancy

This study is a continuation of the work reported previously by one of us (J. D.) and Washburn.1The purpose of this investigation was to study intensively the rate, volume and character of the respirations during the neonatal period and the variations seen in the same infant from day to day. The method, apparatus and technic used in this study were the same as those described in the previous article. SUBJECTS The subjects of this study were eighteen healthy new-born infants from the nursery of the Colorado General Hospital. Tracings of the respirations of each infant were obtained at some time during the first twenty-four hours after birth and then each day subsequently until the child was discharged from the hospital, usually on the tenth day. An attempt was made each day to obtain a satisfactory record of the child's respirations during quiet sleep, during a period in which