THE DISEASES OP THE CREW. 343 



After the departure from the tropic of Capricorn, 

 and the loss of the south monsoon, the first cool 

 south wind, with a change of the temperature from 

 23° to 18" Reaumur, caused various sicknesses ; every 

 day some sailors were attacked with fevers, accom- 

 panied with severe head-aches and great debility. 

 The debihty was frequently much increased by 

 diarrhoeas, which besides sometimes occurred alone. 



At the same time the two youngest Aleutians 

 got the measles, the one two days earlier than the 

 other. First they had much pain in the head and 

 neck, and then in the gums and palate; these symp- 

 toms abated on the eruption of blackish violet- 

 coloured spots over the whole body. The spots, 

 which in the Europeans are red, were of a dark 

 violet in the Aleutians, who have a blackish skin. 

 The thin crust separated on the second and third 

 day. The first patient recovered on the third, the 

 second on the fourth day of the disorder. 



A sailor, (a Tartar,) who first suffered from a 

 head-ache, was seized in two days with diarrhoea, 

 with discharges of blood, which continued a day 

 and a half; after which a slight diarrhoea remained. 

 The pain in the head abated at the same time ; 

 but two days after, he was seized with a strong 

 fever, gripes, with increased diarrhoea, and pains 

 in the stomach. The next day he was very 

 weak, had tenesmus, and discharges of blood 

 mixed with slime. In the afternoon, the fever 

 returned with increased gripes, and continued the 



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