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VOL. LXV.] ' PHILOSOPHICAL TRANSACTIONS. GSS 



Born Males. Females. Proportion. 



In the same country parishes, for another period of years 89S30 . . 84954 . . 19 to 18 



Leeds, Manchester, Coventiy, &c. for a period of years 10S784 . . 103449 . . 20 . . 19 



In the same towns, for another period 57084 . . 54128 . . 20 . . 19 



Total 2388950 . . 227'1201 . . 20 . . 19 



Sweden, for 9 years, ending 1763 4l6007 . . 396124 . . 20 . . 19 



Mr. Derham, in his Physico-Theology, p. 175, has stated the proportion of 

 male to female births at 14 to 13, and this proportion has ever since been 

 generally received as the true one ; but it appears from this table, that it ought 

 to have been stated at 20 to ig. But though it appears, that the number of 

 males bom is in this proportion greater than the number of females born, yet in 

 most places the number of males living, has been found to be less than the num- 

 ber of females. The reason is doubtless, that males are more short-lived than 

 females ; and this is owing partly to the peculiar hazards to which males are sub- 

 ject, and their more irregular modes of life ; but it is owing principally to some 

 particular delicacy in the male constitution, which renders it less durable : for 

 there are many observations which prove, that the greater mortality of males 

 takes place chiefly in the first and last stages of life. A few fects of this kind 

 Dr. P. mentions, as he has just met with them. 



In the parish of St. Sulpice, at Paris, during 30 years, 5 males under a year 

 old died to 4 females. But under 10, only 13 males died to 12 females. In 

 Stockholm, during 9 years ending in 1763, the number of still-borns amounted 

 to 666; of whom Sgo were males, and 276 females; that is, 10 to 7. The 

 number of the living in the town above the age of 80 was, in 1 760, 332 ; of 

 whom 248 were females, and 84 males, or near 3 to 1 . In the whole kingdom 

 of Sweden, including all town and country inhabitants, the number of still- 

 borns, during the 9 years just mentioned, was 19843; of whom 11424 were 

 males, and 8421 females, or near 4 to 3. The number of the living in the 

 whole kingdom consisted of more females than males, in the proportion of 10 

 to 9. It consisted of more females turned of 80 than males, in the proportion of 

 33 to 19 ; and of more females turned of 90 than males hi the proportion of near 

 2 to 1. It appears also, that by the excess of the births above the deaths, 

 Sweden gains every year an addition of above 20,000 inhabitants ; and that in 6 

 years they increased from 2323195 to 2446394. 



The following tables have been selected from several more of the same kind in 

 M. Wargen tin's Memoir on the state of population in Sweden. They are in- 

 serted here, because they fully verify most of the observations in the preceding 

 paper, and contain more distinct and authentic information on the subject of 

 human mortality than has ever before been met with. 



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