THE FRESH- WATER LOCHS OF SCOTLAND. 401 



water on October 3, 1903, was 364-9 feet above the sea; on June 22, 

 1867, the Ordnance Survey officers found it about 6 feet higher (371-5 

 feet). 



In form Loch Meiklie is approximately oblong. A shallow inlet, 

 formed by the encroachment of the river, runs one-sixth of a mile from 

 the west end. The basin is quite simple, with the slopes everywhere 

 gentle, but steepest towards the north shore at the deepest part. Over 

 one-half of the whole area is less than 20 feet in depth. The volume of 

 water is 193 millions of cubic feet, making Loch Meiklie the ninth in 

 point of bulk in the Ness basin. 



The surface temperature on October 3, 1903, was 53'6 Fahr. 



Loch Aslaich (see Plate CI.). An extremely beautiful little loch, 

 about 5 miles west of Loch Ness, surrounded by hills of considerable 

 height, rising to about 2000 feet in the immediate neighbourhood of the 

 loch. On a picturesque wooded island in the loch the members of the 

 Lake Survey had their abode (in a lodge kindly lent by the proprietor), 

 while the lochs of the district were being examined. In form the loch 

 is a narrow oblong, with its long axis running north and south. It is 

 one-third of a mile long, with a maximum breadth of one-seventh of 

 a mile. Its superficial area is about 21 acres (only Lochs Dubh and 

 nan Losganan being smaller), and it drains an area of nearly 2 square 

 miles. This area includes a larger loch (Loch nam Meur), which was 

 not surveyed. Besides the chief feeder, the burn coming from Loch 

 nam Meur, two small burns enter the loch. The river Coiltie has its 

 origin in Loch Aslaich, and flows into the Enrick just where it enters 

 Loch Ness. Its volume is 10 millions of cubic feet; in this respect 

 Lochs Lundie (by Glume), Laide, Dubh, and nan Losganan, are 

 smaller. The height of the loch above the sea was estimated at 1310 

 feet. Fully half the superficial area is covered by less than 10 feet of 

 water. The area of more than 20 feet in depth forms a narrow strip 

 along the west side. This comes very near to the south end, and the 

 deepest sounding, 26 feet, is quite close inshore. The mean depth is 

 11 feet. 



On July 2, 1904, the temperature at the surface and at 6 feet was 

 60-0 Fahr., and at 18 feet, 56-3. 



Duhl, (see Plate XCI.). A very little lochan a couple of miles 

 to the west of Loch Ness and 4 miles south of Glen Urquhart. The 

 shortest loch in the basin, but in all other dimensions the second 

 smallest, since Loch nan Losganan is shallower, narrower, of smaller 

 area and volume. It is obscurely triangular in form, its axis running 

 south-west and north-east, the apex to the north-east. It is situated 

 at a high level, estimated at 1340 feet, amid moorland, rising gradually 

 southward to Meall Fuarvounie (2284 feet). It is nearly one-fifth of a 



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