1872.] CAUSES OF FEVER. 181 



the more so if the insanity takes the form of uttering 

 thoughts which in a sound state we drive from us as impure. 



25th and 26th April. — A touch of fever from exposure. 



21th April. — Better, and thankful. Zahor died of small- 

 pox here, after collecting much ivory at Fipa and Urungu. 

 It is all taken up by Lewale.* 



The rains seem nearly over, and are succeeded by very 

 cold easterly winds; these cause fever by checking the 

 perspiration, and are well known as eminently febrile. The 

 Arabs put the cause of the fever to the rains drying up. In 

 my experience it is most unhealthy during the rains if one 

 gets wet; the chill is brought on, the bowels cease to act, 

 and fever sets in. Now it is the cold wind that operates, 

 and possibly this is intensified by the malaria of the drying- 

 up surface. A chill from bathing on the 25th in cold water 

 gave me a slight attack. 



1st May, 1872. — Unyanyembe : bought a cow for 11 dotis 

 of merikano (and 2 kanike for calf), she gives milk, and this 

 makes me independent. 



Headman of the Baganda from whom I bought it said, " I 

 go off to pray." He has been taught by Arabs, and is the 

 first proselyte they have gained. Baker thinks that the 

 first want of Africans is to teach them to want. Interesting, 

 seeing he was bored almost to death by Kamrasi wanting 

 everything he had. 



Bought three more cows and calves for milk, they give 

 a good quantity enough for me and mine, and are small 

 shorthorns : one has a hump — two black with white spots and 

 one white — one black with white face ; the Baganda were 

 well pleased with the prices given, and so am I. Finished 

 a letter for the New York Herald, trying to enlist American 

 zeal to stop the East Coast slave-trade : I pray for a blessing 

 on it from the All-Gracious. 



* Lewale appears to be the title by which the Governor of the town is 

 called. 



