198 



Dr. G. Dreyer and Mr. J. S. C. Douglas. [Nov. 16, 



Table VI.— Experiment 5. February 18, 1905. 



5 c.c. of Coli serum (x) 61, diluted 1/2. 5 c.c. of 10/1 N Coli culture without 

 formalin. Actual strength of serum in tube 1 = 25 per cent. 





T. 



B. 



c. 



n. 



1 



1820 



1820 



0 





2 



910 



810 



100 













-0 -24 



3 



455 



331 



124 













0-121 



4 



227 -5 



118 



109 -5 













0-205 



5 



113 -8 



30 -7 



83 -1 













0 -215 



6 



56 -9 



3 -82 



53 -08 





7 



28 -4 



<10 







8 



14 -2 



<1 0 







Table VII.— Experiment 6. March 12, 1907. 



4 c.c. Coli serum, Forsog's poly valent, dilu'ted 1/5. 4 c.c. 10/G N emulsion of 

 Coli Aunsogaard, February 23, 1907. Y, unheated ; Z, previously heated to 

 100° C. for 5 minutes. Actual strength of serum in tube 1=10 per cent. 





T. 



Y. 



Z. 



B. 



C. 



n. 



B. 



C. 



n. 



1 



530 



159 



371 







162 



368 















0 



•0768 







0 



■0734 



2 



432 



80 



352 







82 • 



350 















0 



•37 







0 



■397 



3 ......... 



349 



51 



298 







53 -5 



295 -5 















0 



567 







0 



750 



4 



283 



36 -5 



246 -5 







41 



242 















0 



•595 







0 



•923 



5 



231 



27 -5 



203 -5 







33 -0 



198 •O 















1 



•17 







0 



•95 



G 



188 



23 



165 







26 -6 



161 • 4 















0 



•725 







1 



•083 



7 



153 -5 



17 -0 



135 -9 







22 



131 ^5 















0 



•905 







1 



•048 



8 



121-5 



14 



110-5 







18 



106 •S 















0 



•594 







0 



•641 



9 



100 -5 



10 



no -5 







13 -2 



87 -3 







