m 



Royal Society : — 



^H 



useful formulas is added. The curious and useful properties of the 

 new column y are illustrated. 



The mean annual mortality in England was at the rate of 22 in 

 1000; but in eighteen districts the mortality ranged from 28 to 36 

 in 1000, and in sixty-four districts the mortality ranged from 15 

 to 16 and 17 in 1000 ; in the other districts it was at intermediate 

 rates. The Table has been constructed from sixty-three of the 

 districts in which the mortality did not exceed 17 in 1000. 



