420 
BATHYMETRICAL SURVEY OF 
AB - DISCONTINUITY LAYER 
C - SURFACE CURRENT 
D - PRIMARY RETURN CURRENT 
£ - SECONDARY SURFACE CURRENT 
F - SECONDARY RETURN CURRENT 
FIG. 70. CURRENT SYSTEMS IN A LOCH INDUCED BY WIND AT THE SURFACE. 
FIG. 71. TEMPERATURE VARIATIONS IN LOCH NESS AT FORT AUGUSTUS DURING 
^ULY AND AUGUST 1904, 
