METEOROLOGY FOR DECEMBER, 1870. 



Private Observatory, Hobart Town, 



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Leafing, Flnvering and Frmthuj of a, fevy Standard Plants in the Royal Society's 

 Gardens during the month. 

 12th.— Red currants commencing to ripen. 

 14th.— Common privet commencing to flower. 

 17th.— Black currants commencing to ripen. 

 24th. — Melia azederach commencing to flower. 

 25th. — Doyenne d'Ete pear commencing to ripen. 

 31st. — Juneating apple ditto ditto. 



Barometer mean, 29 813 in., being OOOSin., above the average. 

 Temperature mean, 61-51°, being 0-39° above the ditto. 

 Solar intensity mean, lOOSO", being 2 33^ above the ditto. 

 Dew point mean, 47 9", being 1 12'' below the ditto. 

 Humidity of air mean, 03, being 05 per cent, above the ditto. 

 Elastic force of vapour mean, 341, being Oil per cent, above the ditto. 

 Total amount of rain, 0-55in., being 1181in. below the ditto. 

 Increase of rain fall on spontaneous evaporation, S'SSin. 

 Mean amount of ozone, 5 45, being 174 of chromatic scale below ditto. 

 Electricity active on the 1st. 3rd, 4th, 7th, Sth, ;)th, 10th, 15th, 18th 19th "Oth 

 21st, 22nd, 2Srd, 25th, 2Sth, and 29th. 



Aurora Australis on tlie 10th. 16th, and 29tli. 



Much wind from SE. and N.W. FRANCIS ABBOTT. 



