APPENDIX 481 



Faeces. 



Amount in twenty-four hours on ordinary mixed diet, no to 170 grams (Solids 



25 to 45 grams). 



Amount in twenty-four hours on vegetable diet up to 350 grams (Solids 75 



grams). 



Average daily output, moist faeces (Hawk) 100 grams. 

 Gastric juice. 



One hour after Ewald breakfast. 



Quantity 40 to 50 c.c. 



Total acidity 40 to 60 (0.15 to 0.22%). 



FreeHCl 20 to 60 (0.05 to 0.2%). 



Combined % to 3 (o.oi to 0.1%). 



Contents of fasting stomach (residuum) 20 to 50 c.c. (Rehfuss tube). 



Total acidity of residuum 30. 



Free HC1 acidity 19. 



Respiration. 



Composition of alveolar air: Oxygen, 14.5%; Carbon dioxide, 5.5%; Nitrogen 



80%. 



Some give CO 2 alveolar content as from 3.7 to 5.5 volume per cent., or CO2 



tension of alveolar air as from 35 to 40 mm. 



Air hunger in diabetes or chronic nephritis only begins when CO 2 tension has 



fallen to 20 or 25 mm. 

 Urine. Amount (American male) 1 200 c.c. 



Specific gravity 1.015 to 1.025 



Urea 2.3% (35 grams in twenty-four hours) about 



90% of total nitrogen. 



Uric acid 0.05% (.75 grams in twenty-four hours). 



Creatinine 0.07% (i gram in twenty-four hours). 



Ammonia 0.04% (.7 gram in twenty-four hours). 



NaCl 1.1% (!6-5 grams in twenty-four hours). 



