69 



Electrkity had only 2 positive records with tension of 4, registered on the 

 6th. In 1865 there were 21, with maximum tension of 6. There were 46 

 negatives, with maximum tension of 4, and minimum of 0"5. Last year 

 had only 34, though with maximum tension of 7. " Nil " was registered 14 

 times this year, to 7 last. On the last six days of the month nil was noted 9 

 times out of the 12 observations. The contrast of the electrical conditions of 

 the atmosphere, this year and last, accounts to some extent, for the difference 

 in the ozone mean, and the relative amount of mortality at the same time, of 

 course the latter was largely influenced by the state of atmospheric pressure. 



Fifty-four deaths for July 1866 is just one less than the average for this 

 month of the preceding nine years, though one-third more than July last year 

 had (^36), that having, with 1862, the smallest number for any of the nine 

 Julys compared. Three years of the nine had a greater number of deaths 

 than the present month, but the other six all had less. 



Under 1 



1 to 5 



5 to 20 



20 to 45 



45 to 60 



28 60 and above 



54 



Julys. 



36 



70 



10 8 

 13 9 

 10, 4 

 13 22 



3 22 

 10 49 



59 114 



39 



41 



55 



" Under one year of age'' the deaths were not quite half the nine years' 

 average, and only 1863 had fewer. 



At "1 ^0 5 years o/apre" the mortality was slightly more than half of the 

 average. 1865 had only half the number, however, and 1864 had an equality 

 with the present year. 



At "5«o20" the deaths were little more than one-fourth of the average, 

 and only one-third of what 1865 had. Nevertheless 1858 had even less than 

 the present year, that is, none. 



At " 20 to 45" the average of the nine years was more than three times the 

 number that died this month. At all ages under 45, therefore, the total deaths 

 were but 13, while the nine years' average for all these groups amounts to 

 31 1-9, or nearly three times as many. Moreover no single year of the nine had 

 less then 18, and that was last year. The other year of minimum total mor- 

 tality, 1862, had 22. 



At "45 to 60" the deaths were somewhat above the average, and only three 

 years out of the nine had more. 



At " 60 and all ages above'' the mortality was more than double the average, 

 and only the fatal influenza-year, 1860, had more. Last year had much less 

 than half. The previous month of June this year, too, had nearly as many. 



Classes of Disease 



61. 

 6 2. 



Zymotic 

 Constitutional 

 Local 



Developmental 

 Violent &c. 



Julys. 



1 1 



3 

 913 

 17 42 

 411 

 3 4 



I.S 



1|~8 



7| 7 

 2916 



9j 1 

 4 



48 36 70 48.36 59 114'39 41 52l.'>5 



Oi 00 t^ 



"5 ^ Uo 



CO loo 00 



26 



bfl±? 



9 6-9 



8 4-9 



26 5-9 



51 5 6-9 

 6 4 6-9 



