XI. 



METEOROLOGY FOE, MAY, 1870. 



Leafing, Flowering, and Fruiting of a few Standard Plants in the Royal Sonkti/i 

 Gardens during the month. 

 10th— First Medlar ripe. 

 21st — Coronilla Glauca commencing to flo-sver. 

 25th— Photinia serrulata ditto ditto. 

 28th — Diosma alba ditto ditto 

 30th— Spiroea prunifolia ditto ditto ; Alianthus sericeus ditto ditto. 



Barometer mean, 30054 in., being 00207 in. above the average. 

 Temperature mean, 51 63', being 1-35° above the ditto. 

 Solar inten.sity mean, 83 95°, being 2 08' above the ditto. 

 Dew point mean, 42 08°, being 1-76° belo-w the ditto. 

 Humidity of air mean, 74, being -02 per cent, below the ditto. 

 Elastic force of vapour mean, 291, being Oil percent, below the ditto. 

 Total amount of rain, 0-59in., being l-2-2in. below the ditto. 

 Increase of spontaneous evaporation on rain fall, l-22in. 

 Mean amount of ozone, 608, being 072 of chromatic scale below the ditto. 

 Electricity active on the 8th, 9th, 10th, 17th, 27th, 28th, and 29th. 

 A light fall of snow on Mount Wellington on the Sth, the apex covered with ditto 

 on 17th, which was not totally absent till the end of the month. 



FRANCIS ABBOTT 



