1 50 TRANSACTIONS OP ROYAL SCOTTISH ARBORICULTURAL SOCIETY. 



44 per cent., was recorded at Stornoway ; and the least, 29 per 

 cent., at Fort Augustus. 



June 1899. — Very fine and dry weather prevailed in June till 

 about the 17th, when it broke up completely, remaining unsettled 

 and showery till the close of the month. The mean temperature 

 was 57°'4, or 2°"6 above the average, being highest, 60 o- 8, at 

 Dumfries, and lowest, 52° -2, at Deerness. The month was a 

 warm one in all districts, but the excess was more decided at 

 inland than at coast stations. Rainfall was below the average, 

 except in Galloway, the Outer Hebrides, Orkney, and Shetland, 

 where there was a slight excess. Bright sunshine was mostly 

 above the average in the east, but there was a slight deficiency 

 in the west and north. The percentage ranged from 44 at 

 Glasgow to 28 at Fort Augustus. 



July 1899. — The weather of July was very changeable, with 

 heavy falls of rain and frequent thunderstorms. The mean 

 temperature was 59° *1, or 2 o, above the average, and was 

 highest, 62° "5, at Dundee, and lowest, 55°*5, at Benquhat. The 

 general distribution over the country was in close agreement with 

 the normal, but the average was exceeded in all districts. The 

 warmth was most marked "to the south of a line drawn from 

 Fraserburgh to Islay," amounting to three degrees at some places, 

 but in the Hebrides temperature was less than a degree above the 

 average. There were considerable local variations in the amount 

 of rainfall, the quantity collected being above the average at 

 many places in the east and south. Less than the normal fell in 

 the Hebrides, Galloway, East Lothian, Inverness, Kincardine, 

 Forfar, and Caithness. Sunshine was slightly deficient, the per- 

 centage of the possible duration ranging from 29 at Marchmont 

 to 17 at Fort Augustus and Fort William. 



August 1899. — August was a phenomenally warm, dry month, 

 anti-cyclonic weather predominating throughout. The mean 

 temperature was 60° - l, or 3° -5 in excess of the normal, being the 

 highest on record for August since the establishment of the 

 Scottish Meteorological Society in 1855. The mean temperature 

 varied from 63°-2 at Dumfries to 55°-2 at Deerness. The general 

 distribution agreed closely with the normal, but the prevailing 

 easterly winds brought about a much lower temperature on the 

 north-east coast than was experienced on the west. The rainfall 

 was below the average all over the country, many districts having 

 only one-fifth of the normal. Until after the 25 th, when 



