6 
Page. 
Part 7. Relation of toxic action upon guinea pigs to serum therapy 45 
The relation of serum anaphylaxis in the guinea pig to serum 
therapy 45 
Part 8. The effect of repeated injections 51 
The immunizing action of repeated injections 51 
The sensitizing action of repeated injections 51 
The effect of repeated small injections upon sensitive guinea pigs. 52 
Attempts to immunize sensitive guinea pigs by repeated injections 
of heated serum 53 
Part 9. The relation of the toxemias of pregnancy to anaphylaxis 55 
Part 10. Miscellany 57 
Part 11. Summary and conclusions 59 
