42 PHYSIOLOGY OF THE NEW-BORN INFANT. 



the Massachusetts General Hospital. The distance between the front 

 doors of these two hospitals is 177 paces and not more than 2 or 3 

 minutes are required to go from one building to the other. On reaching 

 the observation room, the baby was placed in the respiration chamber. 

 When the measurements of the respiratory exchange were completed, 

 the baby was weighed and measured and then returned immediately 

 to the Lying-in Hospital. 



The routine followed for one infant which was studied shortly after 

 birth is shown by the notes given below and is fairly typical of the 

 routine used for the infants studied under these circumstances. 



Baby R. (No. 94), negro. Born at 2 h 12 m p. m., April 28, 1915. Low for- 

 ceps case. Message received at the observation room at 2 h 20 m p. m. Baby 

 received in the case room at 2 h 27 m p. m. It had been exposed at birth 3 to 

 4 minutes. This exposure was less than usual, as the mother had a hemor- 

 rhage and required immediate attention. The cord was therefore simply 

 clamped. Usually the baby lies in the physician's lap 6 to 8 minutes before 

 the cord is cut. The infant was also exposed about 5 minutes shortly after 

 birth while it was being immersed in water of a temperature of 100 to 105 F., 

 and wrapped in warm blankets with heaters. At 2 h 30 m p. m. it was exposed 

 for 3 or 4 minutes when the cord was ligated and cut. The infant was then 

 weighed, oiled, and the length measured, this requiring 5 minutes. The cord 

 was dressed, the band applied, and the baby dressed in the period of 5 minutes. 

 A bonnet and small coat were put on the infant, which was also wrapped in 

 two large blankets. The nurse and baby left the Lying-in Hospital about 

 2 h 55 m p. m. and arrived in the observation room in the Massachusetts General 

 Hospital at 3 p. m., where a study was made of the respiratory exchange. 



