Max Morse 



HS 



The f ollowing substances were used : 



1. Oxygen gas, as described above. 



2. Hydrogen peroxide, used in lo percent sol. in the digest, i. e. 



approximately 25 cc. to 250 cc. of brei. The Hquid was 

 used from a small, hitherto unopened bottle, purchased 

 locally. 



3. Sodium peroxide, 5 percent sol. 



4. Benzoyl peroxide synthesized in the laboratory from benzoyl 



chlorid and hydrogen peroxide by the Schotten-Baumann 

 procedure^^'^^ of benzoylating ; 5 percent sol. 



5. Potassium permanganate, i percent sol. with the digest. 



The results for autolysis are given below,^^ as cc. of w/5 am- 

 monium hydroxid sol. 



11 Schotten : Ber. d. d. ehem. Ges., 1890, xvii, p. 2545. 



12 Baumann : Ibid., 1886, xix, p. 3218. 



13 Average of duplicate results. 



