1909.] 0)1 the Absorption of Agglutinin by Bacteria, etc. 197 



Tabic IV. — Experiment o. February 9, 1905. 



1 c.c. of Coli serum {x) 61, unheated (Y) and heated undiluted to 60° C. for 

 1 hour (Z). 9 c.c. Coli bouillon culture filtrate (" Toxin " 21), grown 21 days 

 at 37° C. before filtration. Actual strength of serum in tube 1 = 10 per 

 cent. 





Y. 



Z. 



T 



"R 



\-f. 



ti. 



J. . 



B. 



C. 



n. 



1 



880 



775 



105 





708 



490 



218 















0 151 









0 



-535 



2 



440 



347 



93 





354 



214 



140 















0-213 









0 



-569 



3 



220 



143 



77 





177 



91 



86 















0 -303 









0 



-57 



4 



110 



53 



57 





88 -5 



37 



51 -5 















0-517 









0 



-651 



5 



55 



20 -3 



34 -7 





44 -3 



15 -3 



29 















0 -805 









0 



-894 



6 



27 -5 



9-5 



18 





22 -1 



7 -24 



14 -86 















1 -03 









1 



•255 



7 



13 -8 



4-76 



9 04 





11 -06 



4-0 



7 -06 















1 11 









0 



•895 



8 



6-9 



2 -46 



4 -44 





5 -53 



1-9 



3 -63 















1-17 









0 



•995 



9 



3-4 



1 -3 



2 -1 





2-77 



0-95 



1 -82 







Table V. — Experiment 4. February 13, 1905. 



1 c.c. of Coli serum («) 61, diluted 1/5 and then heated to 70° C. for 1 hour. 

 9 c.c. of Coli {'■■ Toxin " 21) (see Exp. 3, Table IV). Actual strength of 

 serum in tube 1=2 per cent. 





T. 



B. 



C. 





1 



60-5 



41 -7 



18^8 















0 ^789 ■ 



2 



30-25 



19 -8 



10 -45 













0 ^738 



3 



15 13 



9 2 



5 93 













0 725 



4 



7-56 



4-2 



3 36 













0 -732 



5 



3-78 



19 



1 ^88 





6 



1-89 



<1 0 







