No. 499] 



NOTES AND LITERATURE 



497 



Thayer, have found that the malarial organisms present in the 

 maternal blood do not occur in the blood of fetus and of the new- 

 born. It has been generally agreed that these luematozoa can 

 not traverse the placenta from the pregnant mother to the fetus. 

 Moreover Bignami et Sereni demonstrated that the fetus lacks 

 not only the parasites, but also the anemia which often charac- 

 terizes the mother. The subject has been subjected to most 



An interesting departure from these conditions is afforded by 

 recent investigations on other disease-producing protozoa. The 

 experiments are not extensive and in sonic cases contradictory. 



