NUCLEIC ACID IX KETROGBADE SARCOMATA 



739 



Table 5. 



Percentage New Formation of Desoxyribosenucleio Acid 



IN Benzpyrene Sarcomata 



Table 6. . — Percentage New Formation of Desoxyribo- 

 .senucleic Acid in Retrograde Benzpyrene Sarcomata 



Activity of 1 mgm nucleic acid P expressed in percentage of the activity 

 oi' 1 mgm inorganic P from the 



sarcoma 

 1.71 



plasma 

 1.91 



liver 

 1.20 



Activity of 1 mgm nucleic acid P expressed in percentage of the activity 

 of 1 mgm inorganic P from the 



sarcoma 

 0.99 



plasma 

 0.81 



liver 

 0.66 



The mean new formation figure obtained for the benzpyrene sarcomata 

 is lower than the corresponding figure obtained for Jensen sarcomata. 

 While we investigated several hundred Jensen sarcomata, the number 



47* 



