XXX. 



METEOROLOGY FOR JANUARY, 1S71. 



Leafing, Floiveriwj, and Fruiting of a few Standard Plants in the Royal Society s 

 Gardens during the month. 

 10th.— Veronica angustifolia in flower. 

 11th.— First Apricot Eoman) ripe. 

 12th.— Grevillea robusta in flower. 

 14th. — Jargonelle Pear commencing to ripen. 

 19th —Black Mulberries ditto ditto. 

 Catalpa syringteflora not flowering this year. ^ 



Barometer mean, 29 887 in., being 0160in. above the average. 



Temperature mean, 64 90 , being 206° above the ditto. 



Solar intensity mean, 106-45", being 319' below the ditto. 



Dew point mean, 51-2' btiag 065° above the ditto. 



Humidity of air mean, "(M, being 03 per cent, below the ditto 



Elastic force of vapour mean, 393, being 020 per cent, above the ditto. 



Total amount of rain, 2-25in., being Ollin. below the ditto. 



Increase of spontaneous evaporation on rainfall, 2-94in. 



Mean amount of ozone, 543, being 144 of chromatic scale below the ditto. 



Electricity active on the 1st, 2nd, 3rd, 13th, 14th, 15th, 16th, 17th, 22nd, 27th, 2SLh, 

 SOth. and 31st. 



14th.— The apex of Mount Wellington covered with snow. 



19th.— Thunder ; 23rd, thunder, liglitning, and rain ; 26th, much thunder and 

 lightning, both sheet and fork, with rain. EUAN CIS ABBOTT. 



