WATER CATCHMENT AREAS IN IRELAND 299 
Dublin, pp. 392, 393 (1908). Mr. Dixon gives the acre- 
age of the catchment area as follows: Upper area, 4340 
acres; lower area, 3250 acres; or a total of 7590 acres. 
The Council own between 50 and 60 acres at the lower 
level of the gathering ground. “The measures taken 
against contamination are regular inspection of streams, 
cleaning catchwater channels and keeping these free of 
vegetation and debris, and provision of pipe drains separat- 
ing the farm drainage from the spring water.” The Council, 
beginning in 1900, have planted nearly 50 acres, about 
80,000 larch, pine, alder, and birch trees being used. The 
timber is already valuable, some of the trees having been 
cut down and employed for fencing as required. 
Dundalk: gathering ground of 1200 acres in Bally- 
makellett and Doolargy townlands, in the Carlingford 
Mountains, between 400 and 1563 feet elevation, all 
mountain pasture and moorland, except 50 acres of arable 
land, which has four houses upon it. The Council own the 
river beds and the valve towers only. The gathering 
ground is regularly patrolled by a water keeper, and the 
water is stored in a reservoir of 32,500,000 gallons 
capacity. 
Drogheda: gathering ground in Slate Hill, Tullyeskar, 
Barnattin, and Killineer townlands, two miles N.N.W. of 
Drogheda, acreage not ascertained, all arable land with five 
farmhouses upon it. The Council own only 10 acres 
around the reservoirs, of which 5 acres have been recently 
planted. The Council have not control over the gathering 
ground; but the water is filtered, and there is a special 
sewage system for Barnattin hamlet. 
Longford *: supply from stream at Lisfarrell, 315 feet 
elevation, with a gathering ground of 600 acres of arable 
land and pasture lands, with several farmhouses upon it. 
Pond and filters. 
Tullamore *: supply from Clodiagh River at Clonaslee, 
400 feet altitude. Large catchment area, acreage un- 
