THE FRESH-WATER LOCHS OF SCOTLAND. 
321 
LOCHS OF THE KINLOCH BASIN. 
There are two lochs to be dealt with here, viz. Loch Chaluim and 
Loch an Dithreibh, the superfluent waters of which are carried into 
the Kyle of Tongue by the Amhainn Ceann Locha (or Kinloch river). 
Loch Chaluim is the only one of several small lochs in the basin which 
could be sounded, and it flows by the Allt an Dithreibh into Loch an 
Dithreibh. The two lochs form a complete contrast in outline and 
conformation of the bottom. 
Loch Chaluim (see Plate LXXVI.). — Loch Chaluim lies on the 
south-western flank of Beinn Laoghal, little more than a mile from Loch 
Cuil na Sithe in the Borgie basin. It is most irregular in outline and 
in conformation, with one comparatively large island, and with weeds 
obstructing many of the bays. Measured in a south-west and north- 
east direction, it is about three-quarters of a mile in length, with a 
maximum breadth of half a mile, its waters covering an area of about 
96 acres. The maximum depth of 30 feet was observed in the extreme 
western portion of the loch, the mean depth being estimated at 8 feet, 
and the volume of water at 33 million cubic feet. The loch was 
surveyed on September 29, 1902, but the elevation of the lake-surface 
above the sea could not be determined. 
Loch Chaluim is on the whole shallow, only three soundings exceed- 
ing 20 feet having been recorded in the most westerly expansion of the 
loch. There are two 10-feet basins, the principal one extending from 
the extreme west end of the loch to beyond the island, filling up the 
south-western expansion of the loch to the south of the island, and 
enclosing the deepest part of the loch, the smaller one lying in the 
eastern and south-eastern expansions of the loch, and having a maximum 
depth of 17 feet. The greater part of the lake-floor is covered by less 
than 10 feet of water, equal to about 69 acres, or 72 per cent, of the 
total area. 
Temperature Ohservatious . — A series of temperatures was taken in 
the deepest part of the loch, with the following results : — 
X 
