23,5 Leach et aL: Hookworm Infestation 479 



Preliminary to a discussion of the observations made on 

 these men, we present Table 8, which summarizes the reactions 

 in the alcoholic and nonalcoholic groups. 

 Table 8.— Resume of reactions in subjects admitting and denying the use 





With the foregoing table as an introduction, we shall now 

 consider these various reactions in terms of the proportionate 

 amounts of the drug administered to the different men. To 

 do this we shall assemble the subjects into four groups on the 

 above basis. This classification, besides being in conformity 

 with the plan followed by us in regulating the dosage for the 

 different subjects, admits of clearer analysis than any other 

 method. The four groups consist of— 



1. Men receiving 1 cubic centimeter of carbon tetrachloride to each 7 

 kilograms of body weight. 



2. Men receiving 1 cubic centimeter to each 6.5 kilograms of body weight. 



3. Men receiving 1 cubic centimeter to each 6 kilograms of body weight. 



4. Men receiving 1 cubic centimeter to each 5.5 kilograms of body weight. 

 Table 9 shows the average dose received by the men in each 



group as well as the extremes. 



Table 9. — Average actual dose and range of dose of carbon tetrachloride as 

 calculated on basis of kilograms of body weight. 



o__.„_ j^J-arlss- 



A :sr 



1 7 kilograms body weight 25 7.7 j 6. 2-9. 4 



Kg. 







[^kilog.ams body weight ... U *) 10.0 | 8.3-12.5 



550 



