SEPTEMBER, 1872. 

 Private Obsekvatohy, Hobaut Town, 



5 -^^ ^ >>?, 



'% =* ^ 2 2 



S o > o . 



£ c (u 



^ M _. p 



? c =3 - 



-g _o ^ .2 o 

 H 8 =e H ti 



Barometer mean, 29-287in., being 0-486in. belo-wthe average. 



Temperature mean, 5570', being 458° above the ditto. 



Solar intensity mean, 9278°, being 332 ditto 



Dew point mean, 41 3°, being 0.94" below the ditto. 



Humidity of air mean, 64, being -12 per cent, below ditto. 



Elastic force of vapour mean, '280, being the same as ditto. 



Total amount of rain, 2-53in., being 0-33in. above ditto. 



Increase of spontaneous evaporation on rain-fall, 122 in. 



Mean amount of ozone, 870, being 78, of chromatic scale above ditto. 



Electricity active on the 2nd, 3rd, 4th, 5th, 6th, 7th, 8th, Otli, 10th, 13th, 14th, 15th, 

 16th, 17th, 18th, 19th, 20th, 21st, 22nd, 23rd, 24th, 25th, 26th, 27th, 2«th, and 30th, with 

 44 positive, and 12 negative, the remainder nil. 



An aurora on the 3rd. Snow never absent from Mount Wellington, with frequent 

 fresh deposits. 



Leafing, Floiocring, and Fruiting ofafevj Standard Plants in the RoyalSocicti/'s Gardens, 

 during the month. 

 12th— Ash commencing to break into leaf. 

 17th — Grape vines ditto. 

 19th— Oak ditto. 



20th — Mountain Peony commencing to flower. 

 24th — Horsechestnut commencing to flower. 

 2Sth— Kobinia pseudo-acacia commencing to leaf. FKANCIS ABBOTT. 



