Behaviour of a Suspension of Microbes 185 



but, in general, the distribution witliin the coknnn was not 

 changed (Fig. 4). 



We have tried to make a balance between (a) the total 

 number of the cells in 5,760 ml of suspension wliich passed 

 through the column; (b) the total number of cells which trans- 

 migrated; (c) the total number of cells washed out from the 

 column during the second period of the experiments, and (d) 

 the total number of cells retained within the column at the 



TABLE 3 



Total Balance of Number of Cells in 5,760 ml of Suspension which 

 Passed Through Each Column (\) Total Number of Cells in the 

 Suspension; (b) Cells Filtered Through the Columns; (c) Cells 

 Washed Out from the Columns; (d) Cells Retained Within the 



Columns. 

 (b), (c) and (d) in Per Cent of Total Number in the Suspension 



