-THE FRESH-WATER LOCHS OF SCOTLAND. 
105 
inooiTaiidj rising little liigRer than the loch. There are many boulders 
along the west shore, and no rock was seen except at two si)ots on the east 
side. The south end is weedy, and there the Old Mill burn goes out 
through a boggy flat. Of the two crannogs the southern is covered, and 
the northern is just seen above the surface. The length is half a mile, 
and the greatest breadth one-sixth of a mile. The bottom is nearly flat, 
and the maximum depth of 10 feet is in the centre of the loch. The 
mean depth is nearly 6 feet, the area 41 acres, and the volume 11 millions 
of cubic feet. The drainage area is about 2 square miles. The surface 
on October 16, 1906, was 239-1 feet above sea-level, much higher than the 
elevation found by the Ordnance Survey on May 25, 1893, viz. 234-5 feet. 
The temperature was 50°-0 Fahr. throughout. 
White Loch of Mijrton (see Plate XXXIX.). — A small loch, within the 
woods of Monreith park, 1 mile east of the village of Port William in 
Wigtownshire. The shore where seen is stony. The south end and west 
side are fringed with dense beds of reeds. The length is a little over half 
a mile, and the greatest breadth nearly a quarter of a mile. It is a 
simple basin, and relatively deep. The maximum depth of 40 feet is near 
the west shore and the north end. The mean depth is nearly 14 feet, 
the area 51 acres, and the volume 30 millions of cubic feet. The 
drainage area is three-quarters of a square mile. The Barsallocb burn 
flows out from the south end, and is controlled by a sluice. On the date 
of the survey, October 15, 1906, the surface was 98-7 feet above sea-level, 
or a foot higher than the elevation determined by the Ordnance Survey 
on May 28, 1894, viz. 97*6 feet. The temperature at the surface was 
53°'0 Fahr., and at 36 feet it was 52°' 7, or only 0°-3 lower. 
