1. The specific lipase of immune hemolytic serum is not necessary for hemolysis, but this does not prove the non-necessity of a lipolytic action in serum hemolysis, since a lipase is always present in the complement serum.
2. Serum lipase is found in the end-piece of split complement.
3. There is a parallelism between the lipase content and complement strength of the sera of different animals (man, rabbit, guinea pig, sheep, ox, cat).