Renal activity, and diet, [297]
and inorganic salts, [298], [299], [300]
Rennin, in gastric juice, [26]
Resistance of body to poisons, relation to low proteid diet, [226]
Respiration calorimeter, [102]
Respiratory foods, [58]
Respiratory quotient, [107]
influence of foods on, [107], [126]
influence of metabolic change on, [108]
of foodstuffs, [107]