APRIL, 1871. 

 Private Obsekvatouy, Hohart Tomts. 



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

 during the month of April, 1871. 

 12th. — Coe's late red ijlum-ripe. 

 15th. — Leaves of common elm falling. 

 20th. — Chinese chrj'santhemum commencing to flower. 

 22nd — Leaves of mountain ash commencing to fall. 

 25th.— Seeds of Carpinus betulus ripe. 

 28th.— Leaves of black mulberry commencing to fall. 



Barometer mean, 30^019in., being 0128in. above the average. 

 Temperature mean, 58 36°, being 3 33° above the average. 

 Solar intensity mean, 90 32°, being 149° below the average. 

 Dew point mean, 466°, being 0-51 below the average. 

 Humidity of air mean, -67, being 09 per cent, below the average. 

 Elastic force of vapour mean, ^323, being 002 per cent, below the average. 

 Total amount of rain, OSOin., being 0-92in. below the average. 

 Increase of spontaneous evaporation on rain fall, 2-58in. 



Mean amouni of ozone, 647, being 052 of chromatic scale below the average. 

 Electricitv active on the 6th, 8th, 9th, 10th, 11th, 12th, 14th, 15th, 20th, 21st, 24th, 

 25th, 27th, and 29th. 



Mount Wellington covered with snow on the 12tli. 



Strong Southern Lights on the 24th. FRANCIS ABBOTT. 



