374 Transactions of the Boyal Society of South Africa. 
DIVISION (3). 
Section (a). — Three days followed by rain, 12 dry. 
Section (b). — No days followed by rain, 15 dry. 
Section (c). — Two days followed by rain, 12 dry. 
Prediction for Division. — Dry weather. 
SUB-GEOUP (H). 
The atmospheric movements bringing about this condition are similar 
to those mentioned under Sub-Group (G), and the arguments given 
thereunder hold good. It is purely a summer type condition, and rain is 
only probable when pressure is actually lowest at L'Agulhas. 
DIVISION (1). 
Section (a). — This happened upon 6 occasions, and rain followed 5 
of them ; wind was westerly on each occasion. 
Prediction. — Wet weather. 
Section (b). — Here we have but 1 case, when dry weather followed. 
Section (c). — Five cases occurred under this condition ; on 3 dry 
weather followed and on 2 rain ; but on one of these days only 0-02 in. 
fell ; wind was westerly on each occasion. 
Prediction. — Dry weather. 
DIVISION (2). 
No cases at all. 
DIVISION (3). 
Section (a). — This happened upon 4 occasions and dry weather 
followed each. 
Section (b). — Here we have 4 cases and dry weather followed each. 
Section (c). — We have only 1 case, followed by dry weather. 
Prediction for Division. — Dry weather. 
SUB-GEOUP (I). 
The reasons which can be assigned for this condition are the same as 
in the former two groups ; it is practically a condition due to the passage 
of smaller type cyclones or the prevalence of anticyclones. Only when 
L'Agulhas is actually lowest is there a probability of rain. 
