Cl. H. F. Nutt all 
79 
voluted glands) contain a substance which retards the coagulation of 
the blood. 
The urticaria, eczema, and cutaneous pigmentation extending at 
times to the mucous membrane, are primary effects due to pediculosis 
alone. 
REFERENCES. 
The reader is referred to the Bibliography on pp. 1 et seq. 
