86 
BATHYMETRICAL SURYEY OF 
It is three-quarters of a mile loug, narrow in the middle, and expanded 
towards each end to one-sixth of a mile. The bottom is absolutely flat, as 
indicated by the invariable soundings, the maximum and the mean depth 
alike 5 feet. The area is about 54 acres, and the volume 12 millions of 
cubic feet. It is dammed at the north end, and communicates with the sea 
by a mill lade. The drainage area, including Loch Fad, is fully 3 square 
miles. 
The temperature was 62°*0 Fahr. throughout, nearly 2° higher than 
Loch Fad. 
