APRIL, 1873. 

 Private Observatory, Hobart Town. 



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Barometer mean, 29 ■977in., being 0-065in. above the average 



Temperature mean, 59 10°, being 3 57° above the ditto. 



Solar intensity mean, 89 0°, being 2 70° belo-w the ditto. 



Dew point mean, 49 5°, being 2-33° above the ditto. 



Humidity of air mean, -75, being -01 per cent, below the ditto. 



Elastic force of vapour mean, 374, being -045 per cent, above the ditto. 



Total amount of rain, 2-56in., being 0-79in. above the ditto. 



Increase of rainfall on spontaneous evaporation, l-50in. 



Mean amount of ozone, 820, being 114 of chromatic scale above the ditto. 



Electricity feeble through all the wet weather. 



Hot wind on the 8th. Weather squally and unsettled all through the month. 



Leafing,' Flowering, and Fruiting of a fev) Standard Plants in the Royal Society's 

 Gardens during the month. 

 12th. — Goes late red Plum commencing to ripen 

 16th. — Chinese Chrysanthemums commencing to flower. 

 18th. — Elm leaves comencing to fall. 

 25th. — Pyrus Aucuparia leaves ditto ditto. 

 30th.— Black Mulberry ditto dttto. 

 ,, . — Seeds of Hornbeam ripe. 



FKANCIS ABBOTT 



