NUTRITION LABORATORY. 223 



(3) The urinary sulfur of fasting steers. Thome M. Carpenter. Jour. Biol. Chem., vol. 



55, Proc. Soc. Biol. Chemists, p. iii (1923). 



An abstract of a paper presented at the seventeenth annual meeting of the 

 American Society of Biological Chemists at Toronto, December 1922. 



(4) A gas-analysis apparatus for use with chamber respiration apparatus. A demonstra- 



tion. Thorne M. Carpenter. Jour. Biol. Chem., vol. 55, Proc. Soc. Biol. Chem- 

 ists, p. xix (1923). 



A brief description of a gas-analysis apparatus demonstrated at the tenth 



annual meeting of the Federation of American Societies for Experimental 



Biology at Toronto, December 1922. 



(5) The basal metabolism of young girls. Francis G. Benedict. Boston Med. and Surg. 



Jour., vol. 188, pp. 127-138 (1923). 



Data on the basal metabolism of two groups (12 each) of Girl Scouts, one 

 18 and one 14 years of age, are given which supplement data previously 

 reported on the metabohsm of young girls (Benedict and Hendry, Boston Med. 

 and Surg. Jour., vol. 184, pp. 217, 257, 282, 297, and 329, 1921). These 

 supplementary findings are in full conformity with the earlier data, and it 

 may be considered as definitely established that young girls from 12 to 18 

 years of age have on the average a basal heat-production of 1,250 calories 

 per 24 hours and that during the 10 hours ordinarily spent in bed their basal 

 heat-production will be approximately 550 calories. The Girl Scout meas- 

 urements, together with the data for younger girls, infants, and adult women, 

 make it possible to obtain a reasonably smooth curve indicating the average 

 course of the metabolism of females from birth to old age, on the basis of 

 the 24-hour heat-production per kilogram of body-weight referred to body- 

 weight. It is impossible to secure such a smooth curve on the basis of heat- 

 production per square meter of body-surface. For purposes of predicting 

 the basal metabolism of young girls, a table is given, based upon a smoothed 

 curve, indicating the probable basal heat-production per kilogram of body- 

 weight per 24 hours for each half year from 12 to 18 years. The prediction 

 of the basal metabolism of young girls from this table, however, must be 

 made with the greatest caution, and deductions should be drawn with very 

 great reserve. The Girl Scout values are seemingly much lower than are 

 commonly found with young girls, and although it can not be considered 

 that their metabolism is abnormally low, it should be pointed out that the 

 values were obtained during sleep. Another comphcating factor is that 

 while with adults undernutrition depresses metabohsm, singularly enough 

 during youth undernutrition apparently increases metabolism. 



(6) Nouvelles recherches du "Nutrition Laboratory" de Boston sur le m^tabohsme de 



I'homme et des animaux. Francis G. Benedict. Bull. Soc. Sci. d'Hygifine Alimen- 

 taire, vol. 11, pp. 343-363 (1923). 



An address given in the amphitheater of the Soci^t^ Scientifique d'Hygiene 

 Alimentaire, Paris, April 14, 1923, describing the new researches (for the most 

 part unpublished) which have been made or are in progress at the Nutrition 

 Laboratory. 



(7) A student form of respiration apparatus. Francis G Benedict and Cornelia Golay 



Benedict. Boston Med. and Surg. Jour., vol. 188, pp. 567-577 (1923). 



To aid in introducing to medical students the fundamentals of gaseous- 

 metabolism measurements a simple type of apparatus is described, involving 



