THE FRESH- WATER LOCHS OF SCOTLAND. 33 



Surface 56'4 Fahr. 



10 feet 56-4 



25 56-4 



40 , 56-4 



45 53-6 



50 51-1 



100 49-5 



These observations show a total range throughout the body of water 

 amounting to 6 '9, the superficial layers down to 40 feet being uniform in 

 temperature, while between the depths of 40 and 50 feet a fall of 5~'3 was 

 observed. 



