490 The Philippine Journal of Science 1923 



percentages ranged from a point below the 10 per cent mark on 

 the Tallquist scale up to 70. The total erythrocyte counts and 

 haemoglobin estimations made before treatment are summarized 

 in Tables 13 and 14. 



Table 13. — Distribution of total erythrocyte counts before treatment. 



Erythrocytes per 



3,000,000 and over 4 



4,000,000 and over 22 



5,000,000 and over 50 



6,000,000 and over 18 



7,000,000 and over 6 



Table 14. — Hsemoglobin estimations before treatment. 



Relatively little work has been done on the red elements of the 

 blood of Filipinos, but our findings are in substantial agreement 

 with those of other observers who have dealt with similar sub- 

 jects. On differential leucocyte counts we recorded an average 

 of 51 per cent polymorphonuclear neutrophiles. Guerrero and 

 Sevilla(3) report an average of 51.6 in their series, and Cham- 

 berlain (l) a range of from 47 to 52 per cent in his various series 

 of Filipinos. 



After treatment, we noted a tendency toward a rise in the 

 proportion of polymorphonuclear neutrophiles during the first 

 twenty-four hours following the administration of the drug. A 

 varying degree of increase was noted in fifty-eight of the men. 

 This effect, however, was not permanent, for after a period of 

 about two months only thirty-eight of the men showed a con- 

 tinued elevation above the count made before treatment. 



Perhaps the most striking feature of the blood picture was 

 the practically universal eosinophilia. This is set forth in Table 

 15, in which the eosinophile counts are associated with the 

 hookworm counts. It will be seen that the correlation is very 

 loose. It may be mentioned, in passing, that no skin affections 

 existed among these men that would influence the eosinophile 

 count. One man gave a history of asthma. He had 10 per cent 



