May 1895.] BOTANICAL SOCIETY OF EDINBURGH. 



429 



II. Meteorological Observations recorded at IiOyal 

 Botanic Garden, Edinburgh, during the Month of April 

 1895. 



Distance from Sea, 1 milo. Height of Cistorti of Barometer above Mean Sea-Level, 

 7G-5 feet. Hour of Observation, 9 A.m. 



Barometer.— Highest, 30-324 inches, on the 14th. Lowest, -28-979 inches, on the 6th. 

 Monthly Range, l-34.'> inch. Mean 29-767 inches, being 0-181 inch below the average for 

 April for four preceding years. 



Protected S. R. Theriiioiueters.— Highest, C-2°-0, on the 23rd. Lowest, 28°-8, on the 7th. 

 Monthly Range, 33°-2. Mean of all the Highest, 51°-9. Mean of all the Lowest, 39°-S Mean 

 Daily Range, 12°-1. Mean Temperature of Month, 4.5°-S, being 0°-9 above the average for 

 April for four preceding years. Frost occurred on 5 days. 



Hygrometer.— Mean of Dry Bulb, 46°-3. 3Iean of Wet Bulb, 43°-0. Temperature of Dew- 

 point, 39°-3. . Mean Humidity, 76-2%. 



Radiation Thermometers. — Highest in Sun, 113°-2, on the 23rd. Lowest on Grass, 19°-9, on 

 the 7th. Frost occurred on Grass on 9 days. 



Sunshine. — Total recorded for month, 119 hours 45 minutes, being 28-3% of the possible 

 amount. The sunniest day was the 14th, with 11 hours 20 minutes, being 80-8% of the 

 possible amount. None was recorded on 3 days. 



Rainfall. —Rain fell on 14 days. Total Fall, 1-0S5 inch, being 0-046 inch below the average 

 for April for four preceding years. Greatest Fall in 24 hours, 0-330 inch, on the 25th. 



A. D. EICHARDSOX, Observer. 



