METEOROLOGY FOR SEPTEMBER, 1870. 



Private Observatory, Hobart Tow:Nr. 



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Leofiag, Flowering and Fndfiwi of a few Standard Plants in the Royal Society's 

 Gardens during the month. 

 12th. — Ash commencing to break into leaf. 

 18th. — (Irape vine ditto. 

 21st.— Oak ditto. 



22nd. — Moiitan jjeony commencing to flo-wer. 

 27th. — Horsechestnnt ditto. 

 30th. — Robinia pscudo acacia commencing to leaf. 



Barometer mean, 29 871 in., being OllOin., above the average. 

 Temperature mean, 52 69°, being 1-93' above the ditto. 

 Solar intensity mean, 88 97°, being 093° above the ditto. 

 Humidity of air mean, -72, being 04 per cent, belo-w the ditto. 

 Dew point mean, 41 9°, being 027° below the ditto. 

 Elastic force of vapour mean, 284, being 005 per cent, above the ditto. 

 Total amount of rain, 3-17in., being l-091in. above the ditto. 

 Increase of rain fall on spontaneous evaporation, 0-66in. 

 Mean amount of ozone, 6 97, being 0-99 of chromatic .scale below ditto. 

 Electricity active on the 1st, 4th, 5th, 10th, 11th, 12th, 13th, 15th, 20th, 21st, 23rd, 

 25th, 26th, 2Sth, 29th, and 30th. 



Aurora Australia on the 21st, 23rd, 2tth, and 27th. 



tenow never absent from Mount W'eliingtou, with frequent fresh deposits. 



FRANCIS ABBOTT. 



