626 PHYSIOLOGICAL CHEMISTRY 



milk, butter, water and agar-agar (to prevent constipation). Meat specially 

 prepared in quantity sufficient for an entire experiment may also be utilized. 

 Ingest uniform quantities of these dietary constituents each day for a period of 

 three days. 1 Make an accurate collection of the urine passed during this interval 

 (see page 598). Separate the feces representing the three-day period (see page 

 620), and analyze foods, urine and feces. The balances ordinarily prepared are 

 those for nitrogen, sulphur, phosphorus and calcium. Analytical methods for the 

 determination of these elements may be found in Chapter XXVII. 



The foregoing table includes balances obtained in a metabolism test on 

 acromegaly. 2 



42. Excretion of Urinary and Fecal Chloride after a High Chloride Ingestion. 

 Combine the procedures outlined under Experiments 21 and 40, pages 609 and 

 624. 



43. A Study of the Elimination of Carbohydrate in Urine and Feces after 

 Excessive Carbohydrate Ingestion. Combine the procedures outlined in Experi- 

 ments 12 and 39, pages 601 and 624. 



1 See note 4, p. 622. 



2 Bergeim, Stewart and Hawk: Jour. Expt., Med., 20, 218, 1914. 



