1889.] 



On the Nutritive Value of Wheat Meal. 



551 



larly to the whole meal. The urine was also treated by Kjeldahl for 

 nitrogen, the solid residue by evaporating several 5 c.c. in platinum 

 dishes to dryness, and the phosphoric acid by the volumetric uranium 

 method. The following tables give the results : 



First Period. Insufficient Supply of Whole Meal. 



The table shows that 82' 6 per cent, of the dry substance was 

 assimilated, of the fat 69 per cent, disappeared, 2*22 grams of nitrogen 

 were excreted in excess of that ingested, there was (practically) phos- 

 phoric acid equilibrium, there were more salts excreted than taken in, 

 and there was excretion of sulphur and chlorine, although the water 

 taken as a drink and mixed with the food was distilled, and only a 

 small quantity of un oxidised sulphur could be detected in the flour. 



Second Period. Barely sufficient Ingestion of Whole Meal. 



84'3 per cent, was therefore digested of the dry substance, 77*7 per 

 cent, of the fat had disappeared, there was (practically) nitrogenous 



