320 BATHYMETRICAL SURVEY OF 



map. Towards the northern end of the loch lies the second 50-feet area, 

 based on soundings of 50 and 51 feet, and of small extent, the greatest 

 depth recorded on the ridge separating the two deep basins being 

 20 feet close to the eastern shore. The contour of the bottom is shown 

 in the longitudinal section A-B on the map. The areas between the 

 consecutive contour-lines, and the percentages to the total area of the 

 loch, are as follows: 



to 25 feet 138 acres 



25,, 50 78 



50,, 75 74 

 Over 75 7 



297 100-0 



The temperature of the surface water on the date of the survey was 

 54 Fahr., and four readings beneath the surface in the deepest part of 

 the loch gave identical results, viz. 53 at depths of 10, 25, 50, and 

 70 feet. 





