97 



Leafing^ Flowering ^ and Fruiting of a Few Standard Plants 

 in the Royal Societg^s Gardens dvring the Month : — 



4th. Pailonia Imperialis commencing to flower. 



9th. C'arpinus commencing to leaf. 



15th. Ailanthus glandulosus ditto ditto. 



17th. Tilia Europoea ditto ditto. 



20th Morus niger ditto ditto, 



25th. Maclaura aurantiaca ditto ditto . 



25th. Ulmus Campestris, seeds commencing to fall. 



28th. Melia azederach commencing to leaf. 



Barometer mean, 29 746in., being 0'038in. below the average. 



Temperature mean, 56 03°, being 2*09° above the ditto. 



Solar intensity mean, 98 30°, being 2'70° above the ditto. 



Dew point mean, 46*3°, being 1*9° above the average. 



Humidity of air mean, '75, being *02 per cent, above the ditto. 



Elastic force of vapor mean, •334,being *034 per cent, above the ditto. 



Total amount of rain, 3"34in., being l-37in. above the ditto. 



Increase of spontaneous evaporation on rainfall, l'75in. 



Mean amount of ozone, 8*10, being 018 on chromatic scale above the ditto. 



Electricity active on the 1st, 10th, 12th, 14th, 16th 21st, and 30th. 



Squally on the 11th with hail, rain and snow. 



Thunder on the 3rd. 



FRANCIS ABBOrr. 



