74 
Proceedings of the Royal Society of Edinburgh. [Sess. 
developed cyclone and an anticyclone). A similar effect must occur in the 
south-east region of a depression (see fig. 4), where detached colder 
Anticyclone Cyclone 
At High Levels. At High Levels. 
in Region of Heating, 
Denser Air Entering. 
Region of Cooling, 
Denser Air Leaving. 
Near Surface 
Fig. 8. 
portions of the northerly current are bursting their way through the 
warm southerly current towards the region of higher pressure. The 
