CANNOT BE FILTERED OUT 



CHEESE CLOTH 64 MESHES TO THE INCH MAGNIFIED 

 SEVENTY -FIVE TIMES 



In this picture in the upper right hand corner 

 are the same bacteria shown on the previous 

 page. They are five times as large as they ought 

 to be in correct proportion to the size of the 

 meshes of the cheese cloth. Between the two 

 threads, 400 of these bacteria could be arranged 



