THE RAINS. 



163 



hili Kausi (^y), from mid- April to early August, 

 the period of the greatest strength. Second, Ki- 

 pupwe or first winter — July and early August ; 

 and third, the Dayman, which ends the Kausi. 



Presently appear the rains which have fol- 

 lowed the northing sun. The same observation 

 was made by the Austrian mission on the White 

 River in N. lat. 4° 30'. On the coast we can dis- 

 tinctly trace their progress. In 1857 the down- 

 fall began in Eeb. 15, at Usumbara (S. lat. 5°), 

 where the clouds are massed and condensed by 

 a high plateau, leading to lofty, snow-capped 

 mountains. In 1854 I found that the rainy 

 season opened at Berberah of the Somal (N. lat. 

 10° 25') on April 15 ; and in early June they 

 reach Eombay (N. lat. 18° 53'). Concerning the 

 movement of the wet season in inner intertropi- 

 cal Africa I have already written in the Journal 

 of the Royal Geographical Society (xxix. 207). 



The heaviest rains at Zanzibar Island begin 

 the wet season about mid-April, and last 30 to 

 40 days; they do not end, however, till early 

 June. Some observers remark that the fall is 

 greatest at low water and during the ebb-tides 

 of the Syzygies. It is, however, rare to have a 

 week of uninterrupted rain, as in eastern India 

 and sometimes in the Brazil. The discharge is 



