METEOROLOGY. 



JANUARY, 1874. 

 Private Observatory, Hobart Town. 



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Barometer mean, 29900m., being 0'15Gin. above the average. 



Temperature, mean, 66'77°, being 4 - 0S° above the ditto. 



Solar intensity, mean, 109-60, being 158 above the ditto. 



Dew point mean, 526°, being 219° above the ditto. 



Humidity of air mean, -5854, being -8 - 41 per cent, below the ditto. 



Elastic force of vapour mean, -384, being -011 per cent, above the ditto. 



Total amount of rain, l'15in., being - 42in. below the ditto. 



Increase of spontaneous evaporation on rain-fall, 2 9Sin. 



Mean amount of ozone, 5'50, being 143 of chromatic scale below ditto. 



Electricity active all through the month, except on the 4th and 7th. 



A fall of snow on Mount Wellington on the 25th, and again on the 31st. 



Rain, with thunder, on the 17th. 



Mean daily amount of sunlight for December, 1872 and 1873, taken hourly for antici- 

 pating clear weather at the transit of Venus in December of the present year, 75 per 

 cent. 



