756 



THE RESPIRATION AND 



[PT. Ill 



Oxygen taken up per Calories produced per 



Then Lussana found in the embryo, with its large relative surface, 

 a more intense respiration than in the mother, using the liver and 

 muscle of the guinea-pig, rabbit and goat. 



Table 88. Lussana" s in vitro experiments. 



Cubic centimetres of gas given off or taken up per lOO gm. wet weight per hour. 

 Foetus at term Maternal organism 



Liver 



Muscle 



Liver 



Muscle 



Guinea-pig 



Rabbit 



Dog 



Carbon Carbon Carbon Carbon 



Oxygen dioxide Oxygen dioxide Oxygen dioxide Oxygen dioxide 



1003 1060 205 547 896 918 214 275 



2686 2707 283 315 2365 2424 237 273 



710 1065 603 835 530 882 833 866 



Better figures are those of Kayser, LeBreton & Schaeffer, who 

 compared the oxygen uptake of various tissues according to age, as 

 follows : 



Table 89. 



Oxygen taken in (cubic centimetres per 

 hour at 37°) 



