diseases, flora and fauna, of the north and south banks of the Congo—whether owing to the difficulty of crossing the terrifically rapid and powerful stream of the great river I do not know. Still there was—more in former times than now—much intercourse between the natives of the two banks when the Portuguese discovered the Congo in 1487. The town called now San Antonio was the throne town of the kingdom of Kongo, and had nominally as provinces the two districts Kakongo and Loango, these provinces that are now the head centres of the sleep disease. Yet in the early accounts given of Kongo by the Catholic missionaries, who lived in Kongo among the natives, I have so far found no mention of the sleep disease. It is impossible to believe that Merolla, for example, could have avoided mentioning it if he had seen or heard of it. Merolla's style of giving information was, like my own, diffuse. Certainly we must remember that these Catholic missionaries were not much in Loango and Kakongo as those provinces had broken almost entirely away from the Kongo throne prior to the Portuguese arrival, so perhaps all we can safely say is that in the 15—17th centuries there was no sleep disease in the districts on the south bank of the Congo, and it was not anything like so notoriously bad in the districts on the north bank.
Before quitting the apothecary part of this affair, I may just remark that if you, being white, of a nervous disposition, and merely in possession of an ordinary amount of medical knowledge, find yourself called in to doctor an African friend or acquaintance, you must be careful about hot poultices. I should say, never prescribe hot poultices. An esteemed medical friend, since dead, told me
