April 1891.] BOTANICAL SOCIETY OF EDINBURGH. 



95 



Meteorological Observations taken at Royal Botanic Garden, Edinburgh, 

 during the Month of March 1891. 



Distance from Sea, 1 mile. Height of Cistern of Barometer above Mean Sea-level, 

 71 '5 feet. Hour of Observation, 9 A.M. 



Barometer. — Highest Reading, on the 18th, = 30-039. Lowest Reading, on the 

 26th, = 29-201. Difference, or Monthly Range, = 0-838. Mean=29-683. 



S. R. Thermometers. — Highest Reading, on the 2nd, = 54°-8. Lowest Reading, on 

 the 9th, = 17°-8. Difference, or Monthly Range, = 3-2°-7. Mean of all the Highest 

 = 44° -2. Mean of all the Lowest = 31°-8. DiflFereuce, or Mean Daily Range, = l'2°-4. 

 Mean Temperature of Month = 38°-0. 



Hygrometer.— Mean of Dry Bulb=38°-0. Mean of Wet Bulb = 35°-1. 



Rainfall. — Number of Days on which Rain, or Snow, fell = 16. 

 in inches, = 2 -801. 



Amount of Fall, 



