ARNETH'S NUCLEAR CLASSIFICATION. 



409 



smears from men residing in America, we are unable to state whether 

 this slight drift to the left is due to climatic influence or to our own 

 personal equations in enumerating. For the Filipinos we found a very 

 decided shift to the left and are sure that this represented an actual and 

 wide departure from the Caucasian average, because we have as a standard 

 for comparison our series made simultaneously on white men in the same 

 locality. 



Our average results for differential and Arneth counts for the two 

 races, compared with several writers' estimates of the normal are shown 

 in Table II. For the 72 Americans the average length of the present 

 tour of tropical duty was 14.6 months and the average total tropical 

 service 28.7 months. 



Table II. — Arneth counts on healthy Americans in the Philippines and on healthy 

 Filipinos, contrasted with normal counts in Europe and America. 





a 

 a 



g 



1 



i 



Differential counts, per 

 cent. 



Arneth's classification, 

 per cent. 



a 



Eh 



■a 



Index (Bushnell and 

 Treuholtz). 



2 



1 

 a 



t 



1 



•l-H 



6 



ti 

 in >• 



a 



CO 



6 



a". 



si 



«3 



I. 



11. 



III. 



IV. 



v. 



Normal (Simon) < 



Normal in Europe (Ar- 

 neth) 



3,000 

 to 

 10, 000 



60 

 to 

 70 



1 



to 

 4 



20 

 to 

 30 



1 



to 

 6 



0.2 



to 

 1.0 



4 



to 

 9 



5 



5 



8 



21 

 to 



47 



35 

 19 

 36 



33 



to 

 48 



41 



46 



42 



9 

 to 

 23 



17 



25. 



13 



2 



to 



4 

 2 

 5 



25 

 to 

 56 



40.0 



24.0 



44.0 



60.5 

 47.0 

 65.0 



Normal in United 

 states (Kagan) . 















Normal (Buchanan 

 and Williams )!> 1 



Average for 72 healthy 

 Americans in Philip- 

 pine Islands 



5,000 

 to 

 10, 000 



70 

 to 

 90 



0.5 

 to 



4 



20 

 to 

 30 



to> 

 6 J 



i>0.5 



7,304 

 9,248 



56.8 

 52.2 



3.8 

 10.6 



j 



1 



31.7 6.9 

 29.9 fi fi 



0.8 

 0.7 



13.3 



32.9 



37.2 

 25.8 



14.6 



•^0 



46.2 

 65.8 



64. S- 

 78.7 



Average for 50 healthy 

 Filipinos 



27.5 38- 3 



7.5 0.9 

















" With the large lymphocytes have been classed the transitional forms, following the 

 grouping of Simon. 



*> The average white and differential counts given in this line are from R. J. M. 

 Buchanan, Blood in Health and Disease (1909). The Arneth averages are from 100 

 counts on 55 individuals in the United States by W. W. Williams in Colorado Medicine 

 (1911), 8, 175. 



From the tables it is evident that there is a very marhecl shift to the 

 left in the Arneth count for Filipinos and apparently a slight movement 

 in the same direction for Americans resident in the Philippine Islands. 



THE ARNETH INDEX IN THE TWO RACES. 



The index, referred to in an earlier part of this paper, is very useful 

 to give at a glance a basis of comparison between different Arneth counts. 



106073 5 



