Determination" of Galactose 



523 



259 (2219) 



The determination of galactose in the presence of glucose. 



By K. F. CORI, G. W. PUCHER, G. T. CORI. 



[From the State Institute for the Study of Malignant Disease, 



Buffalo, N. T.] 



Folin and Wu's method for blood-sugar has been adapted to 

 the determination of galactose glucose mixtures. The method 

 is based on the fact that copper solutions of different alkalinities 

 give different reduction values for galactose, but the same for 

 glucose. It was also found that Bertrand's as well as the Myer- 

 Benedict method give the same reduction values for glucose and 

 galactose. The use of the latter methods in combination with 

 that of Folin and Wu is unsatisfactory due to errors that may 

 be introduced by the discrepancies for glucose values obtained 

 on the same blood. 



260 (2220) 

 Energy metabolism of premature infants. 

 By M. ELIZABETH MARSH (by invitation). 



[From the Physiological Laboratory of the University of Rochester, 

 and the Obstetrical Division of the Highland Hospital, 

 Rochester, X. Y.] 



Energy metabolism studies have been made in 82 periods of 

 observation upon 21 prematurely born infants including those 

 previously reported. 1 Both the oxygen and carbon dioxide, and 

 thus the R. Q., were determined for each separate period and 

 heat calculated from the oxygen consumption. Temperature 

 within chamber was usually kept between 24° C. and 28° C. 

 Infant was fed (amount of feeding determined by weighing 

 before and after), placed in the chamber and a preliminary 

 period run to allow a lapse of 30 minutes between time of feeding 

 and the beginning of the first period. An average minimal heat 

 production per sq. m. per hour (Lissauer formula) of 25.0 



i Murlin and Marsh, Proc. Soc. Exp. Biol, and Med., 1922, xix, 431. 



