24 TRANSACTIONS OF ROYAL SCOTTISH ARBORICULTURAL SOCIETY. 



Lancashire, covering an area of looo acres on the Millstone 

 Grit formation, and the second at Vyrnwy, in Montgomeryshire, 

 with an area of nearly 23,000 acres. The work of afforestation 

 on these areas has been mainly undertaken with a view to 

 utilise the ground, and at the same time to prevent any 

 pollution of the water supply. Operations at Rivington were 

 begun about 1904 with an experimental area of about 600 

 acres, and in 1908 408 acres had been actually planted. At 

 Vyrnwy the area actually planted (in 1908) was 400 acres, and, 

 in addition, there were a number of old woods covering some 

 hundreds of acres. Nurseries have been established at both 

 places, which are now able to supply the trees required for 

 planting. The average cost of planting has been about ^6 

 per acre, but this includes some expenditure which will not be 

 necessary in future. 



Mr Parry has furnished the Board of Agriculture with the 

 following general statement of the afforestation work carried out 

 by the Liverpool Corporation since the year 1904 : — 



The top water of Lake Vyrnwy is 825 feet above Ordnance 

 datum, and the catchment area around the lake rises, by 

 slopes generally moderate, to a height of over 2000 feet. At 

 the north-west end the slopes are steeper, and in places precipitous. 

 The Silurian rocks around the lake are of a slaty nature, and 

 disintegrate into a loamy soil, which is retentive of moisture. 

 The number of trees of various species planted in the plantations 

 round Lake Vyrnwy since the year 1904 and up to 30th June 

 1908, has been as follows: — Larch, 203,600; Douglas fir, 

 131,225; spruce fir, 163,100; silver fir, 20,000; Scots pine, 

 36,500; Corsican pine, 176,425; Weymouth pine, 39,070; 

 Austrian pine, 5200; oak, 7600; ash, 2700; sycamore, 9350; 

 beech, 105,300 ; total, 900,070. The planting for the year 

 1908-9 was completed early in May. The area planted was 

 117 acres, and the number of trees was 326,000 (including the 

 filling of blanks), making a grand total planted since 1904 of 

 1,226,070. The total amount spent on the nurseries and 

 plantations at Lake Vyrnwy (including fencing) last year was 

 ;^i467, 15s. 8d., but a considerable amount of this was incurred in 

 clearing scrub from old abandoned woods, and in the drainage of 

 peat lands. The Rivington reservoirs are situated in Lancashire 

 between the towns of Bolton and Blackburn, and the total area 

 of the gathering ground is 10,000 acres. The Corporation 



