WATER CATCHMENT AREAS IN SCOTLAND 265 
Above 1500 feet elevation . : p H 25 acres. 
Between 1250 and 1500 feet . ; : Ah colle. 
Between 1000 and 1250 feet . ; 5 y wikQ40l ss 
Between 750 and 1000 feet . : : 2 (BDEBe«15: 
Reservoir. ; , : : : ; line st 
Total ; . 8825 acres. 
There are two reservoirs, Glencorse and Loganlea. 
According to Mr. Leslie, “the water draining into the 
Glencorse reservoir is naturally free from peat, the water- 
shed consisting of high hills covered with short grass. How- 
ever, it becomes more mossy towards the upper reaches, so 
that the water impounded in the Loganlea reservoir is at 
times darkly coloured. The whole catchment area is under 
hill grazing with the exception of 45 acres. The average 
annual rainfall is 37°61 inches. The Glencorse gathering 
ground would seem to be suitable for afforestation, but it is 
not owned by the Edinburgh Corporation. The Water 
Trustees only exercise over the area the general powers to 
prevent fouling of the water that are conferred by the 
Waterworks Clauses Act of 1847.” 
The Moorfoot Waterworks consist of three areas: Glad- 
house reservoir, with a catchment area of 6131 acres, 
Tweedale Burn, 1337 acres, and Portmore reservoir with 
610 acres, or 8078 acres in all. There are two compensa- 
tion reservoirs, Roseberry and Edgelaw, the former on the 
South Esk and the latter on its tributary, the Fullerton 
Burn. The Moorfoot areas are not owned by the Edinburgh 
Corporation, and no scheme for their afforestation has been 
mooted. 
The Talla catchment area comprises 6180 acres, of which 
5760 acres have been purchased by the Edinburgh Cor- 
poration. Most of it is at a high elevation, as shown in 
the following table: 
Between 1500 and 2526 feet elevation . . 4520 acres. 
eV AORO 'o. SaGHO Pays) Ce We i ae 
po) ROC, a anO TASB | i Reba 
x 950 ,, 1000 ,, et ea we ata 
Reservoir at 950 feet elevation 5 if ~ 300 
Total area . : . 6180 acres. 
