xin.c P 4 Shaw: Microtechnical Methods 259 



For cases in which very small areas suffice for the count 

 a circle of 314 square microns was used, the radius being 10 

 microns, and the corresponding constant, k, is 100. This served 

 for counts of cells of daughter coenobia within the parents. 



For very large coenobia with widely separated cells the area 

 taken for count was 31,416 square microns, the radius being 

 100 microns, and the constant, K, 10,000. 



