INOCULA TION OF BREAD PASTE. 



71 



ployed. Most organisms will also grow upon this soil at ordinary 

 temperatures, but more slowly than when incubated. By slightly 



Fig. 30. — Black Toruli growing on bread paste. 



varying the proportion of water in the process of preparation, a more 

 or less succulent paste can be produced, and the requirements of a 



