Barometer mean, 29-781in., being 0-003in. above the average. 

 Temperature mean, 6060°, being 621° above the ditto. 

 Solar intensity mean, 100-70', being 3-58° above the ditto. 

 Dew point mean, 468°, being 2 24° above the ditto. 

 Humidity of air mean, '61, being 12 per cent, below the ditto. 

 Elastic force of vapour mean, -311, being 008 per cent, above the ditto. 

 Total amount of rain, l-49in., being 0-57in. below the ditto. 

 Increase of spontaneous evaporation on rain -fall, 2-71in. 

 Mean amount of ozone, 6 20, being 171 of chromatic scale below the ditto. 

 A large amount of atmospheric electricity all through the month. 

 A very strong wind-force all through the month, accompanied with a large amount ( 

 spontaneous evaporation. 

 Lightning on the 30th. 



Floioering, and Fruiting of a few Standard Plants in the Royal Society's 

 Gardens during the month. 

 12th. — Carpinus Betulus commencing to break. 

 22nd. — Ailanthus Glandulosus commencing to break. 

 25th.— Common Lime ditto. 

 27th.— Morus Niger ditto. 



30th. — Ulmus Carapestres seeds commencing to fall. 

 31st.— Melia A-zederach commencing to break. 



FRANCIS ABBOTT. 



