462 The Philippine Journal of Science im 



PROTOZOAN INFESTATIONS 



It was not anticipated that the drug would have any per- 

 manent effect on the intestinal Protozoa, with the possible excep- 

 tion of Giardia. Only four infections with Giardia were 

 detected in the entire series, and we secured no evidence that 

 any of these were affected in the slightest degree. Having in 

 mind the error that obtains with respect to intestinal protozoan 

 findings under a limited number of examinations, we feel justi- 

 fied in stating that carbon tetrachloride is without effect on 

 any of the Protozoa detected by us during this study. We 

 record our data in Table 3, for the purpose of making our 

 record complete, and shall not make further allusion to the 

 action of the drug on the intestinal Protozoa. 



Table 3.— Intestinal Protozoa found before and after treatment. 



STANDARDIZATION OF THE TREATMENT 



Treatment of the men in this series was not started until 

 we had carried out some observations on a group of three mur- 

 derers condemned to death. 1 At the time, it was contemplated 



1 The observations on these three men were made by two of us, Leach and 

 Haughwout, and do not form part of the work embraced in this report. 

 Major George R. Callender, M. C, U. S. A., president of the U. S. Army 

 Medical Department Research Board for the Philippine Islands, kindly 

 studied the histological preparations and rendered the report we have in- 

 corporated here. The necropsy was performed and a report on it fur- 

 nished to us by Captain Charles H. Manlove, M. C, U. S. A., whose 

 experience in the pathological anatomy of Filipinos has been very ex- 

 tended. We extend our gratitude to these two gentlemen for the valuable 

 counsel they have given us. 



