UNION OF COMPLEMENT 



29 



EXAMPLE 1, SERIES (a). 1 c.c. 5 per cent, suspension of corpuscles 

 and 1-5 doses of immune-body in each tube. 



SERIES (&).! c.c. suspension of corpuscles and 3 doses of immune- 

 body in each tube. 



M.H.D. of complement = 0.0475 c.c. 



If we judge of the amount of complement taken up by 

 the point at which free complement first appears, we find 

 that 1-5 doses of immune-body take up, approximately, 

 0-085 c.c. of complement : 3 doses of immune-body take up, 

 approximately, 0-1 7 c.c. of complement. 



EXAMPLE 2. Details as before. 



SERIES (a). 1 c.c. of 5 per cent, suspension of corpuscles and 

 1 dose of immune-body in each tube. 



SERIES (6). 1 c.c. of 5 per cent, suspension of corpuscles and 

 5 doses of immune-body in each tube. 



M.H.D. of complement = 0-017 c.c. 



Result. I dose of immune-body takes up 0-027 c.c. of complement, 

 5 doses of immune-body take up 0-11 c.c. of complement. 



