Fermentations by Organisms ' 801 



July 25. A. The manometric tube attached indicates about 1 cm. 

 (mercury) excess pressure. The meat is evidently very rotten. The 

 air of the flask is horribly foul; it contains 38% of carbonic acid, but 

 no trace of oxygen. Therefore 410 cc. of oxygen were consumed and 

 760 cc. of carbonic acid produced. 



B. The pressure has dropped 1 cm. at the most; the meat looks 

 rather rosy. The air of the flask is a little less foul than that in A; 

 it contains 30.9% of C0 2 , but no trace of oxygen. Therefore 440 cc. 

 of oxygen were consumed and 649 cc. of C0 2 were produced. 



C. Pressure maintained well. The meat is amber colored. The air 

 of the receiver has no odor; it contains 7.2% of C0 2 and 69% of oxygen. 

 Therefore about 357 cc. of oxygen were consumed and 396 cc. of CO? 

 were produced. 



Experiment CCCLXXXVII. July 27. 7 o'clock in the evening. 

 Temperature 23°. A small dog having died the evening before, its hind 

 feet, weighing 95 gm., were placed: 



A, under a bell of 3.200 liters, full of air at normal pressure; the 

 bell being tightly closed. 



B, in the Seltzer water apparatus (1050 cc), with 4 superoxygen- 

 ated atmospheres. 



July 28. At 5 o'clock, the air is changed in A and in B, which is 

 kept at 7 atmospheres. 



July 29. 2 o'clock. A. The air, which has no odor, contains: 2 17.1; 

 CO, 1.8. The meat is reddish. 



B. The air has no odor, and contains: 2 65.5; C0 2 0.8. The oxygen 

 tension therefore was at the beginning about 66 x 7 = 462, equivalent 

 to 23 atmospheres of air. The meat is yellowish. I change the pressure 

 to 6V4 atmospheres. 



July 31. 5 o'clock in the evening. Temperature 23°. A. The air 

 smells very bad; it contains: 2 3.8; CO., 17.2; therefore, since July 29, 

 534 cc. of oxygen has been consumed and 117 cc. of C0 2 has been 

 formed. 



B. No odor. 32 cc. of oxygen has been consumed, and 50 cc. of C0 2 

 formed. 



A is taken out and the air changed, with the same bell; the meat 

 has a terrible odor; the hairs and the epidermis are coming off. 



B is taken to 6 atmospheres. 



August 3. 2 o'clock. Temperature 21°. A. Air has a disgusting 

 stench; covered with mold. The air contains no trace of oxygen, but 

 23.9 of CO.; since July 31, 651 cc. of oxygen has been consumed and 

 741 cc. of CO.. has been formed. 



B. No odor, no mold. The air contains 59.2 of oxygen and 5.2 of 

 C0 2 . Therefore 348 cc. of oxygen has been consumed, and 212 cc. of 

 CO, formed. 



B is taken out and put on a plate in the laboratory. The next day 

 it begins to smell bad; on August 7, mold appears on it. 



Experiment CCCLXXXVIII. November 14. Temperature 14°. 

 A. I place in the cylindrical glass apparatus two mutton cutlets, 

 and subject them to a pressure of 11 atmospheres, with air containing 



