4 



Annals of the South African 



capping of dolerite on Qoqolosi Peak. The plain and valley of the 

 Caledoii River are composed of silt washed down by the streams and 

 mountain torrents which are suddenly formed during the heavy 

 summer rains. 



FIG. 1. 



LERIBF DISTRICT 



METEOROLOGY. 



I have been unable to obtain records of the temperature at Leribe, 

 but from data available we know that extremes of heat and cold are 

 experienced during the course of the year. During the mouths of 

 June and July the temperature falls below freezing point during the 

 night. Occasionally frost occurs as early as May and lasts until 

 September, and snow falls once or twice a year but melts after a few 

 hours, except on the highest peaks, where it sometimes remains for 

 days or weeks. In summer, from November to March, severe hail- 

 storms accompanied by thunder and lightning are frequent, and, as 

 will be seen from the accompanying table, these are also the rainy 

 months. The rains are usually preceded by northerly winds, but 

 strong westerly winds blow from August to October. The country is 



