476 Scientific Intelligence. . [Dec. 



tality at 9 years of age was more than double the usual mortality at 

 the same age; from 10 to 25, more than triple the ordinary mor- 

 tality ; from 40 to 50, not half greater ; while at 60 it is less, and at 

 70 it is more than half less than the usual mortality ; and at 80 infi- 

 nitely less. Hence, the plague appears not to be a dangerous disease 

 in advanced life. This is exactly the reverse of the mortality in 

 cholera. While typhus is most common between the years of 20 & 



40 ; it rarely occurs above 40. From 1 year of age to 80 the deaths 

 from cholera are to those from plague as 1 to 7 ; from 30 to 80 the 

 proportion is reversed; — the mortality from plague being to that 

 from cholera as 1 to 8. 



In 1834, according to the census, the population of Geneva con- 

 sisted of 12,573 males, 14,604 females = 27,177 total. In February 

 1828 the population was 11,978 males, 14,143 females = 26,121 

 total. Shewing an increase of ^- in six years. 



1. The births in 1834 were : males, (legitimate, 281 ; natural, 

 17,) 321; females, (legitimate, 304 ; natural, 23,) 304. Total, 

 625. The proportion of births to the population is 1 to 43*48. The 

 illegitimate children amount to 6*4 per cent. There were six cases 

 of twins, viz. 2 with 2 boys, 1 with 2 girls, and 3 with a boy and 

 a girl. 



2. Still horn : Males (legitimate, 27 ; natural, 2,) 29 ; females, 

 (legitimate, 10; natural, 3,) 13, or -J^th of the births. 



3. Marriages: Between previously unmarried persons, 187 

 young men and widows, 7 ; divorced men, and young women, 2 

 widowers and young women, 24 ; widowers and widows, 7 = 227 

 or 1 marriage for every 120 persons. 



4. Divorces = 3 ; 2 from assigned causes, and 1 by mutual 

 consent. 



5. Deaths: ikfaZe^, young men, 168; married, 103; widowers, 

 49 = 320 = 11920, eight years together. Females: young 

 women, 146; married, 86; widows, 81 = 313 =: 13,043, four 

 years. Total of both sexes, 633. 



Of these 92 or i died in the hospital (60 males, or ^, and 32 

 females, or ^.) The proportion of deaths to the population is 

 1 to 42-93. 



The mean term of life for men is 37 years 3 months ; for women, 



4 1 years 8 months 2 days ; both sexes, 39 years 5 months 7 days ; 

 and the probable term of life for men is 38 years ; for women, 45 

 years 3 months; both sexes, 41 years 4 months 15 days. The num- 

 ber of suicides investigated are T, viz. 2 men by means of cutting 

 instruments, 1 man by fire-arms, 3 women by throwing themselves 

 from a height, and 1 man by drowning. No person died from 

 small pox. There were 264 vaccinations ascertained. 



6. Proportion of deaths to births. — Males, births, 321; 

 deaths, 320 = + 1 excess of males. Females, births, 304 ; deaths, 

 313 = — 9 = excess of deaths. Total births = 625 ; deaths, 633, 

 leaving 8 for the decrease in the population. 



