1909.] Intracellular Constituents of Bacteria, etc. 327 



Table I. — Number of Typboid Bacilli ingested by 50 Polymorphonuclear 



Leucocytes. 



x eriocl. 



Dilution 

 of serum. 



Control 

 (opsonic index 



= 1 -o). 



-ttaDDlu 1. 



Opsonic 

 index. 



j ivaDDio JL±. 



Opsonic 

 index. 



Control 



undiluted 



96 



82 



'85 



88 



"9 



before 



1 



in 5 



60 



54 



"9 



54 



'9 



inoculation 



1 



10 



38 



42 



1 -1 



36 



1 '0 



24 hours 



undiluted 



112 



20 



-17 



28 



"25 



after 



1 



in 5 



86 



12 



-13 



14 



0-16 



inoculation 



1 



10 



54 







— 









48 hours 



undiluted 



122 



166 



1 -4 



156 



1 -3 



after 



1 



in 5 



74 



398 



5-4 



336 



4-5 



inoculation 



1 



10 



43 



154 



3 - 6 



166 



3 "8 



3 days 



un 



diluted 



112 



357 



3 2 



369 



3 3 



after 



1 



in 5 



70 



204 



3 



254 



3 - 6 



inoculation 



1 



10 



35 



114 



3 -3 



116 



3 "3 





1 



20 





70 





84 





5 days 



undiluted 



196 



392 



2 -0 



327 



1 - 7 



after 



1 



in 5 



48 



548 



11 -4 



496 



10 -3 



inoculation 



1 



10 



33 



515 



15 -6 



448 



13 - 6 





1 



20 



14 



325 



23 



357 



25 - 5 





1 



50 



~ 



101 





48 





6 days 



undiluted 



135 



103 



0-8 



131 



1 -o 



after 



1 



in 5 



64 



270 



4 -2 



160 



2 5 



inoculation 



1 



10 



33 



124 



3 -7 



135 



4 "0 





1 



20 



— 



98 



— 



75 







1 



50 





83 





80 







1 



100 





66 





29 





7 days 



undiluted 



114 



155 



1 '4 



125 



1 -1 



after 



1 



in 5 



49 



110 



2 -3 



71 



1 -4 



inoculation 



1 



10 



28 



71 



2 -4 



42 



1 -5 





1 



20 



— 



50 



— 



60 







1 



50 





35 





29 







1 



100 



— 



29 



— 



22 





8 days 



undiluted 



121 



202 



1 -7 



121 



1 -o 



after 



1 



in 5 



110 



240 



2 -2 



145 



1 -3 



inoculation 



1 



10 



51 



168 



3 3 



198 



3 9 





1 



20 





164 





126 







1 



50 





98 





45 





12 days 



undihited 



118 







112 



0-95 



after 



1 



in 5 



60 







112 



1 '9 



inoculation 



1 



10 



23 







180 



7-8 





1 



20 









164 







1 



50 









98 







1 



100 









28 





It is not suggested either in Table I or in Table II that the index is correct to the second 

 decimal. The figure in the second decimal place is given only to indicate the trend of the index. 



