PHAGOCYTOSIS OF SOLID PARTICLES. Ul 



LOg A-X. 



QuasTz 4.08 /Jt, 



3HT& 



1 



Log A-x 



Quarts 2.4/x 



5 Hours 



Fig. 5. 



24 



ZO 

 164 



tog A-x 



CaTbon 3.2jljl 

 K=.37 



Quarfz. 24/i 

 K-.48 



2 Hours 



.5 f Hours 



Fig. 7. 



Fig. 3-7, Curves showing comparisons of rates of ingestion of quartz and car- 

 bon particles of various sizes by the suspension method. The logarithms of the 

 number of particles in 0.02 c. mm. not yet ingested are plotted as ordinates 

 against time in hours as abscissae. See Table II for the results of the com- 

 parisons when corrected for the chances of collision. 



