276 (U'lOlfUEUO AM) .SEVll.LA. 



Jt is triK' tliat the cases with splenomegaly showed at the time of 

 oxamination only a slight enlargement of the spleen. The hlood from 

 these cases Mas examined on two different occasions with negative results. 



It is not strange that this small town, situated in tlie Mariquina Valley 

 and near the shores of Lake Bay, in a decidedly marshy region, should 

 l)e so sparsely infected with malaria, for the disease is I'ather a local one 

 and is apt to appear in various local foci within a certain limited 

 area. There are many towns in the Philippines similar to Taytay which, 

 though exhibiting the same to])ogra])hy, show, nevertheless, a higher 

 degree of infection. 



In view of the conditions of the soil and the meagre nund)ei' of infec- 

 tions found during tlie period Mdien we made the investigations, we 

 conclude that an antimalaria campaign here would be carried out more 

 successfully during the dry season (February. March, and April ) when the 

 nund)er of cases of malaria and the nund)er of lueeding ])laces of mos- 

 quitoes are at a minimum. 



As to the method whicli would seem to be most advisable for the exter- 

 mination of malaria here, we believe that the systematic administration 

 of (piinine to all cases found carrying tlie malarial pai'asite and the de- 

 struction of the larva? of A no/i/irlcs by the spi inkling of kerosene oil in 

 all water holders and receptacles, are the principal measiires which may 

 be used with success. The natives are well acquainted with the efficiency 

 of quinine in condjating malaria, and even those most ignorant and 

 prejudiced against any but native medicines are willing to take (luiniiie 

 without serious objection. 



The free distribution of quinine by the (iovernment or the regulation 

 of the sale of the drug so as to render it cheaper, are other measuies which 

 ■ might also be adopted for the benefit of the people. 



OTKKR STUDIES OF 'I' HE BLOOD. 



Systematic analyses of the hlood of the majority of the people who 

 called at the dispensary, were also jiuule \\ith the idea of discovering what 

 parasitic diseases of the blood were i)revalent in the locality as well as 

 with the idea of throwing light u]K)n other diseases and aiding in estab- 

 lishing an accurate diagnosis. 



The specimens were collected from persons of both sexes and of all 

 ages, some of Mdiom were actually sick, though the majoi'ity did not show 

 any indication of illness. 



The percentage of ha?moglohin was first determined. 'I'he Tallquist 

 method was employed on account of its simplicity and because it was 

 considered sufficiently accurate for clinical purposes. The lowest average 

 of lupmoglobin registered was 1.5 per cent and the highest !).■> pei- cent. 

 In the majority of the cases the ha?moglobin oscillated between 70 and 

 85 per cent Avith a total average percentage among (516 ])ersons who were 



