Show INCREASE IN N LIFES DURATION k aal ay science has done much to 1 prolong the stay of man upon the earth national efficiency depends partly on I 1 nata natural iral resources partly on tile integrity of social institutions partly on oil human vitality and alid la is a reaction tin th old fatall fatalistic stio creed that deaths occur nt at a constant rato tho new motto Is s it la Is within the power of man mail to rid himself self of uvero parasitic disease 1 longevity varies in different alm almea and places tho the average length of ufa life in dellin denmark 1 rk and sweden ac exceeds 3 e ds CO 60 years in ili india it falls short 0 of t 25 in kurono it has haa increased tit years from froin less than 20 to avor 40 years in massachusetts in loss less than halt a century it has haa increased avo years As longevity mortality decreases the death rate in the registration area of tile tho united states Is por per Mo thousand usand in ili india it la is about 42 per thousand in european Kur Hur cities it varies fro from in 16 to 40 tho the death rato has haa been decreasing during several levei il centuries ili n the seventeenth seventeen th and eighteenth cont centuries urles it wae vae 10 0 to 50 and during tile tho pest periods ruse ruo as high na SO 0 it Is now IB 15 in havana tho death rate afo after american occupation fell from over GO 50 to about 20 the greatest reductions bay been effected among children the tha mortality beyond tile the age of 60 years has remained stationary special dip diseases have decreased sath as tuberculosis cul cu losis which Is now one third at as prevalent as aa two generations gonora tlona ago typhoid fever which it ili munich after tile the elimination of cesspools ces c spools go oIs de creased 97 per cent and in ili law rence I 1 mass after the introduction or of a public water filter decreased over 80 per cent smallpox has ii a s a disappeared since vaccination was employed and yellow fever since itt mosquito origin has haa been known know american health magazine |