315 
1909-10.] Current Observations in Loch Garry. 
the period of observation, as is shown by the following typical series of 
temperatures taken at the deepest part of the lake : — 
Depth. 
17 th Aug. 
1909. 
11th Sept. 
1909. 
Surface. 
60-5° F. 
55-0° F. 
10 feet. 
59-4 
54*8 
25 „ 
59-1 
35 „ 
59-0 
50 „ 
556 
53-5 
60 „ 
50-5 
52*8 
75 „ 
47'6 
51 2 
85 „ 
47-4 
100 „ 
46*5 
46-9 
200 „ 
46-4 
46-6 
The first series of observations shows a discontinuity at a depth of about 
50 feet, and the second, being later in the year, at about 7 5 feet. 
West East 
Observations at the East End of the Loch. 
Observations were made at the east end of the loch on sixteen days, 
and, neglecting observations at the surface, on nine of these days there 
were observed currents of greater velocity than 3 centimetres per second 
