OCTOBER, 1871. 



PlilVATE OdsEKVATORY, lIoiiART ToW.V. 



Leafing, Flowering, and Fruiting of a few Standard Plants in the Royal Society's Gardens 

 during the month. 

 8th. — Carpinus betulus commencing to leaf. 

 18th. — Aiianthus glandulosa ditto ditto. 

 24th.— Tilea Europea Lime: ditto ditto. 

 27th. — Morus niger ditto ditto. 

 28th.— Elm seeds commencing to fall. 

 31st.— Melia azederach commencing to leaf. 



Barometer mean, 29 891in. , being 0107in , above the average . 

 Temperature mean, 55 33°, being 139° above the ditto. 

 Solar intensity mean, 95 71°, being 011° above the ditto. 

 Dew point mean, 432', being 120° below the ditto. 

 Humidity of air mean, 67, being 06 per cent, below the ditto. 

 Elastic force of air mean, 287, being 013 above the ditto. 

 Total amount of rain, l-5-2in., being 0-45in. below the ditto. 

 Increase of spontaneous evaporation on rainfall, 2-02in. 

 Mean amount of ozone, 8 47, being 55 of chromatic scale above the ditto. 

 Electricity active all through the month, with 17 positive, and 45 negative. 

 Snow never absent from Mount Wellington during the month, with a fresh deposit 

 on the 16th. FRANCIS ABBOTT. 



