[ 139 ] 

 MAY. 



Min. Sun. 



After the first five days very little rain fell, and altogether 

 the amount was moderate. From the 6th to the 23d, the wea- 

 ther was generally fine. North-east winds were the most pre- 

 valent, and towards the end they were more especially cold and 

 dry. The radiating thermometer about this time indicated 

 several degrees of frost, particularly on the night of the 27th. 

 Some of the terminal buds of the Sweet Chestnut, and of course 

 of other plants equally tender in a similar stage of growth, 

 were killed. Potatoe tops in some situations were also injured. 

 The mean temperature was several degrees below the average ; 

 yet the cheering influence of the Sun formed a pleasing contrast 

 with the clouded state of the atmosphere in the former months. 

 Mean Pressure from the 3 daily observations 30.181 inches Fahr. 



Temperature Ditto ii°.90 or 53.42 



Dew Point Ditto 7°.^ — 45.46 



Degree of Dryness Ditto 4°.42 — 7.96 



■ Degree of Moisture . . .Ditto 768 



Force of Vapour Ditto 345 inch. 



Least observed degree of Moisture 310 



Maximum Temperature in the Shade zf.2 or 73.76 



Maximum Temperature in the Sun 35°.o — 95.00 



Minimum of Terrestrial Radiation — 6°.o — 21.20 



Mean Temperature of External Air 1 1°.20 — 52.16 



N. East . 



13 days. 



