248 '^^^ Philippine Journal of Science 



which can be absolutely identified as Treponema pallidum, but there are 

 structures which resemble them. 



Heart mtiscle. — Sections of the heart muscle stained by the Levaditi 

 method do not reveal any evidence of Treponema pallidum. 



CONCLUSIONS 



1. The average duration of the life of Filipinos is shown by 

 the statistics of the Philippine Health Service to be considerably 

 below 40 years. 



2. The cause of death before 40 years of age in the greater 

 percentage of Filipinos is due to the tropical diseases. 



3. The incidence of atheroma with associated hypertrophy of 

 the heart and chronic interstitial nephritis increases suddenly 

 after 40 years of age ; this is an important factor in the cause of 

 death after 40 years of age. 



4. Chronic intestinal disorder leading to chronic toxaemia is 

 probably the most important factor in producing such a high 

 percentage of atheroma. 



5. The aneurism incidence of Filipinos as seen at autopsy is 

 0.382 per cent. 



6. The chief manifestation of syphilis in Filipinos, as seen at 

 autopsy, is in the arteries in 80 to 90 per cent of the cases. 



7. High blood pressures and strains do not appear to be im- 

 portant factors in the production of atheroma in Filipinos and 

 probably not in the production of aneurisms. 



8. These findings concerning vascular lesions seen at autopsy 

 in the Philippines agree closely with the findings of Rogers in 

 India. 



REFERENCES 



1. Chamberlain, W. P. A study of the systolic blood pressure and the 



pulse rate of healthy adult males in the Philippines, Phil. Joum. Sci., 

 Sec. B (1911), 6, 467. 



2. CONCEPCION, I., and Bulatao, E. Blood pressure picture of the Fili- 



pinos, ibid. (1916), 11, 135, 151. 



3. Hammack, R. W. Syphilis in 712 autopsies. Reported before the Manila 



Medical Society (1914). 



4. Mendoza-Guazon, Maria Paz. Study of the anatomicopathologic lesions 



in one thousand Filipino children under five years, Phil. Joum. Sci., Sec. 

 B (1917), 12, 51. 



5. Rogers, L. Gleaning from the Calcutta post-mortem records, Ind. Med. 



Gaz. (1910), 45, 84-90, 124-127. 



6. WOLEY, H. p. The normal variation of the systolic blood pressure, Joum. 



Am. Med. Assoc. (1910), 55, 121. 



