THE FRESH- WATER LOCHS OF SCOTLAND. 237 



half a mile, falls over the cliffs into the Lang Clodie Wick. The level 

 is estimated at just over 400 feet. 



The surface temperature on August (3, 1903, was 53'8 Fahr. 



Eela Water (see Plate XCIX. ) is about halfway between Hillswick 

 and Ollaberry, and close to the main road. It is one of the largest 

 lochs in Shetland, and nearly square in outline. The loch lies at 

 a considerable elevation, in the midst of rough moor and low heather- 

 covered hills, highest to the east. Part of the east shore is rocky, but 

 the shores are for the most part cumbered with stones and boulders. At 

 the north-east corner the watershed is close to the loch, and very little 

 above the level of the water, though the outflow is to the south-west, 

 by the Eelawater burn, which flows into Hamar Voe on the west coast. 

 The loch measures three-quarters of a mile diagonally from north-east 

 to south-west, and is fully half a mile broad at two places at the extreme 

 east and a little west of the centre. 



Eela Water is a simple basin, the greater part less than 20 feet deep 

 (mean depth 16 feet), the bottom sloping gently on all sides, the slope 

 being greatest on the west and south. A limited depression of over 

 50 feet, with the maximum depth of 54 feet, occurs somewhat north-east of 

 the centre. The superficial area is not quite a quarter of a square mile, and 

 the volume of water 103 millions of cubic feet. Only a few very small 

 burns enter the loch, the area drained extending to scarcely a square mile. 

 The outflow is through peat, over a channel of boulders, and no rock 

 was seen near. When surveyed on July 23, 1903, the elevation was 

 217-9 feet above sea-level ; at that time the water was low, and might rise 

 3 to 4 feet higher. On October 21, 1876, the Ordnance Survey officers 

 found the elevation to be 2 18' 7 feet above the sea. 



A series of temperatures taken in the deepest part showed a range 

 of scarcely 1 : surface, 54-9 Fahr. ; 25 feet, 54-6 ; 50 feet, 54'0. 



Funds Water (see Plate XCVII.) is a small loch, lj miles south 

 of Eela Water, and on the west side of the road. It is surrounded on 

 all sides by wild heather-covered hills, and peat comes close down to 

 the stony beach. The islands are low and covered with heather. The 

 loch is of rhomboid form, half a mile long by a third of a mile broad. 

 The bottom is very uneven, with several depressions, the deepest of which 

 lies just north of the largest island, and has a maximum depth of 30 feet. 

 The mean depth is 10 feet, the superficial area about 40 acres, and the 

 volume of water 26 millions of cubic feet. It has a small drainage area, 

 about half a square mile, and receives no considerable stream. The 

 Pundswater burn flows north-west into Hamar Voe. On July 25, 1903, 

 the surface was 149-3 feet above sea-level, which is almost identical with 

 the elevation determined by the Ordnance Survey officers on August 17, 



