ditto: a small glass of this, fasting morning and evening, produces vomiting and purging of black dejections, this is continued for seven days; no meat is to be eaten, but only old rice or dura and water; a fowl in course of time: no fish, butter, eggs, or beef for two years on pain of death.

Mohamad's father had skill in the cure, and the above is his prescription.

Safura is thus a disease _per se_; it is common in Manyuema, and makes me in a measure content to wait for my medicines; from the description, inspissated bile seems to be the agent of blocking up the gall-duct and duodenum and the clay or earth may be nature trying to clear it away: the clay appears unchanged in the stools, and in large quantity.

A Banyamwezi carrier, who bore an enormous load of copper, is now by safura scarcely able to walk; he took it at Lualaba where food is abundant, and he is contented with his lot.
Squeeze a finger-nail, and if no blood appears beneath it, safura is the cause of the bloodlessness.
FOOTNOTES: [8] A precisely similar epidemic broke out at the settlement at Magomero, in which fifty-four of the slaves liberated by Dr.
Livingstone and Bishop Mackenzie died.

This disease is by far the most fatal scourge the natives suffer from, not even excepting small-pox.
It is common throughout Tropical Africa.