64 Transactions of the Royal Society of South Africa. 
Table I. 
Lysis of 1 c.c. 5 per cent. Suspension Washed Rabbit's Corpuscles. 
Rabbit serum (same animal). 
0-1 c.c. 
0-2 c.c. 
0-4 c.c. 
No serum. 
Brilliant green 1 per cent. 
/ c.c. 
aqueous solution ren- 
0-01 
0 
Trace 
Distinct 
0 
dered isotonic immedi- 
ately before use by -^ 
0-025 
0 
Just 
Complete 
0 
addition of appropriate 
complete 
amount of 10 per cent. 
0-05 
0 
0 
Complete 
0 
NaCl. 
Eeadings after \ hour at 37° C. 
Table TL 
Lysis o/0"5 c.c. h per cent. Suspeyision Washed Ox's Corpuscles. 
Rabbit serum. 
0-025;c.c. 0'05 c.c. 0-1 c.c. 0-2 c.c. No serum. 
C.C. 
Brilliant green O'l f 0*075 Distinct Complete Complete Complete 0 
per cent, solution ^0-1 „ „ „ „ 0 
(isotonic) ( 0*125 0 Marked „ „ 0 
Control : 0*5 c.c. ox's red blood-corpuscles + 0"5 c.c. rabbit serum 
Readings after i hour at 37° C. 
= no lysis. 
