114 



however, of an uniform velocity during the month is a very arbitrary one, 

 and the results can be considered only approximately correct. 



The relations of the quantities of rain which fell under the different winds 

 are registered each eveniug at sundown. 



The twenty-five years' standard tables are used for obtaining the differ- 

 ence from the average. 



Leafing, Flowering, and Fruiting of a Feio Standard Flants 

 in the Boyal Society's Gardens during the Month : — 



12th. Common Privet conimencing to flower. 



15th. First bunch red currants ripe. 



20th. First bunch black cvu-rauts ripe. 



25th. Melia azederach commencing to flower. 



31st. Doyenne d'Ete Pear commencing to ripen. 



Barometer mean, 29 915in., being 0*l70in. above the average. 



Temperature mean, 60"87°, being 0-25° below the ditto. 



Solar intensity mean, 105 03°, being 2-06=' above the ditto. 



Dew point mean, 50-06°, being 1-04° above the ditto. 



Humidity of air mean, '69, being "01 per cent, above the ditto. 



Elastic force of vapor mean, '368, being '016 per cent, above the ditto. 



Total amount of rain, 3"59in., being l-86in. above the ditto. 



Increase of spontaneous evaporation on rainfall, 1 '38in. 



Mean amount of ozone, 7"51, being 0*32 of chromatic scale above the ditto. 



Electricity active on the 3rd, 4th, 5th, 6th, 7th, 26th, and 29th. 



Heavy thunder, strong flashes of lightning, with much rain, on the llth. 



FRANCIS ABBOTT. 



