144 



Compressibility of JVater. 



In all Russia, in the year IS 17. 

 Born ^^^'^[j^^^'^^^j \ 1,498,606, or 4 1,000 more than in 1S16. 



405,469 female}^2S,561, or 8178 more than in 1816. 



Of which, under 5 years 208,954 ! 

 Died, males of more than 60 years of age 68,723 



Died 



Of females, no return. 



Greatest number of deaths (children excepted) between 60 

 and 65 years. 



Born 670,045 more than died. 



Married 339,069 or 9836, more than in 1816. 



At 60 to 70 years every (circa) 



6th man 

 11 



26 

 207 

 540 



5,097 



8,296 



20,147 



60,442 



423,092 



423,092 



France by the last census, and by documents furnished by the 

 Board of Statistics, contains 29,217,405 souls. Births in Paris 

 in 1819 — 24,344, of which 8,641 were natural children : deaths 

 22,072, including 351 children wlio died of tlie small pox : still- 

 born children 1,352 : marriages 6,236. Population of Paris 

 713,765. 



COMPRESSIBILITY OF WATER. 



In our last we gave an account of Mr. Perkins's experiments on 

 this subject, in which he states tlie compression effected by a 

 pressure of 100 atmospheres to be " ahout one per cent. ;" but 

 Dr.lloget, having calculated the degree of compression i)roduced 



