THE FRESH-WATER LOCHS OP SCOTLAND. 259 



From the table on page 258 it will be seen that in the twenty reservoirs 

 under consideration 1065 soundings were taken, and that the aggregate area 

 of the water-surface is about 3 square miles, so that the average number of 

 soundings per square mile of surface is 355. The aggregate volume 

 of water contained in the reservoirs is estimated at about 998^ millions 

 of cubic feet. The area drained by these reservoirs is 43 square miles, 

 or about 14 times the area of the lochs. 



