84 



the month, and received an addition on the 14th, but none fell in the oity or 

 low hills around it. - 



Humidity mean, 74, was — 2i below the 20 years' average. 



Elastic force of Vapor, had a mean of, +21 above the 20 years' standard, 

 being 301. 



Cloud mean 5'86 is + Ml above the 20 years' average. 



O^owe never had so high a mean, 8 "74, for any month since records have 

 been kept in this city. The previous maximum was 8 "62 in August, 1863. The 

 present month's mean, is + "90 above the September average of the previous 

 seven years. Saturation (10) was recorded nine times. The minimum 5 was 

 only registered once — on the day of maximum temperature, 21st. With so 

 small an amount of aerial movement, and few rainy days, it is surprising that 

 ozone should be so unusually abundant, but probably the electrical condition 

 of the air generated it in great quantities. 



Electricitij had the unusually high number of 23 positive records, with 

 the high maximum tension of 6 — negative had 35 indications, with maximum 

 tension of 6'5. "Nil" was only registered at the two observations on the 14th, 

 when calms were recorded at all the three wind observations of the day, with 

 mizzling rain in the morning and smart showers in tlie afternoon ; barometer 

 very low and falling ; and the lowest maximum temperature (55) of the month. 

 Lightning was observed on the evening of the 21st, and, accompanied with 

 thunder, on the 23rd 



The deaths were 37, being — 10 5-7ths below the average of the previous 

 seven years. 1861, however, had two less than this, but the next in number, 

 1863 and 1858, had five more, and all the others considerably more, as 

 will be seen in the following table : — 



Under one year of age, the deaths were — 2 4-7ths below the seven years' 

 average; though one more than last year's September, and that of 1861 had. 

 At " 1 to 5" years old, the deaths were less than any year of the seven, 

 and only one-fifth of the seven years' average. Altogether, the mortality 

 under five years old, was less than one-fifth of the whole. From " 5 to 20" the 

 deaths were + 0"6-7thsabove the average. Between "20 and 45" the deaths 

 weie considerably ( + 3 3-7ths) above the seven years' mean ; six out of the 

 seven having less, and only 1862 more. At "45 to 60" the deaths were much 

 below the average, i.e., —4 2-7ths, and less than any one year of the seven. At 

 all ages "above 60", the deaths were —4 l-7ths below the seven years' mean, 

 and less than any one of them. The deaths above 60, constituting exactly the 

 same proportion of those at all ages, as those below 5 years of age 



The "classes of disease" into which the mortality of the month was distri- 

 buted, and the relative proportion they bore to those in the previous month, 

 and the seven years' Septembers preceding the present one, is shown in the 

 following table . 



Classes of 



5 1 Zymotic 



9 2 Constitutional 



3 Local 



4 Developmental 



5 Violent, &c. 





6 



10 2-7 



23 3-7 



4 3-7 



3 4-7 



47 5-7 



