68 



going both reductions and additions, and on the last day of the month, but 

 one small patch was visible from the city. 



Humidity mean, 80, is exactly the same that 1863 had, being — 2^ below 

 the 20 years' average for July. 



Elastic-force of Vapor mean, 282, is + 23 above the 20 years' mean, and 

 -f 27 more than 1863 had. The maximum of the month was 4.03 at noon 

 on the 20th, and the minimum 193 was recorded at 7 a.m. on the 31^ 13th and 

 27th. The present month has the highest mean of 24 years. The next was 

 the sickly JiiJy of 1855. 



Spontaneous Evaporation. Though much less than rain-fall on the whole 

 month, exceeded it greatly for every part of the month except the four days 

 17th to 20th. 



Cloud mean, 5 '93, is + '66 above the 20 years' mean. 



Ozone mean, 7 "31, is + '46 above the mean of the previous seven years. 



Electncity had 6 positive indications with maximum tension of 5"5 ; Nega- 

 tive had 42, with maximum tension of 5.0; — and there were 14 observations 

 when "nil" was recorded. Sheet lightning was very prevalent on the evening 

 of the 24th. 



70 deaths this month is a wery high mortality, in fact, in the previous seven 

 years, only July 1860 (when 44 deaths occurred, mostly from epidemic influ- 

 enza and its sequences, in very aged and infii*m persons) had a higher rate. In 

 1861 when measles carried off so many young children, the deaths were even 

 11 less than the present month : — 



Under one year of age the deaths were nearly double the as-erage of the 

 seven years, and were only equalled by 1857. At 1 to 5, however, the mor- 

 tality was less than one-half the seven years' average, and not one of the 

 seven had so few. At 5 to 20, again, there were nearly double the average 

 number of deaths, and 1861 alone had a greater number — At 20 to 45 the 

 numbers were a trifle less than the average, 1861 having the like number, 

 three out of the seven years having less, and the other three more. At 45 to 

 60, the deaths were not much short of being twice as many as the seven 

 years' average, only 1860 having a greater number. At all ages above 60, the 

 deaths were one less than the average, but 1860 gi'eatly exceeded it. "VTere 

 that year's July excluded from the calculation, the present month's deaths 

 Would be very nearly double the six years' average, which is only 7. More- 

 over, all this year's deaths were above 65 years of age, the oldest, an invalid 

 male at the Brickfields, being 92 years old. 



Classes of 



1 Zymotic 

 13 2 Constitutional 

 42!3 Local 

 11 4 Developmental 



4 5 Violent 



70 



Julys. 





,-1 00 r^ tH : 00 00 



51 3 

 6 7 

 33 29 

 6 9 

 4, 



19 38 



6 10 



2l! 44 



5, 11 



8' U 



51 48 36 59 114 39 41 52 55 4-7 



46 



87 



20 24 



2 



4 2 





12 



7 5-7 

 25 5-7 



5 1-7 



5 



The 19 Zymotic deaths in 1861 were. Measles 9, Croup 4, Diphtheria 2, 

 Scarlatina 1, Diarrhoea 2, jRheumatic Fever 1. 



