During the day one of the porters deserted with his load. The guard went in search of him, and he was soon brought into camp and led to the Doctor's tent for punishment. Doctor Bronson dismissed him without payment. He did not need the man any longer, owing to the reduction of their supplies by the last batch of presents to Mirambo. The fellow was overjoyed at the mildness of his sentence, as he had expected to lose his head for his disobedience. [Illustration: A NATIVE GUARD.] A march of five days took the party to Tabora, a town of the province or district of Unyamyembe, and frequently called by the latter instead of the former name. It is about three hundred and sixty miles from the coast in a direct line, and the distance to Zanzibar is reckoned, in round figures, at five hundred miles. The district was occupied by Arabs from Zanzibar about forty years ago. They came there to trade, and, by arrangement with one of the native rulers, they established villages, planted fields, and became permanent residents. Unyamyembe is a province of Unyamwezi, and has become a meeting-place of the merchants for all the central region of Africa. The Arabs have regular and frequent communication with Zanzibar by means of their caravans, and the lines of commercial travel diverge from Unyamyembe in all directions. In the busy season of the year they may be counted by dozens or scores, while at other times their number will be very small. Frank and Fred began to think they were returning to civilization when they saw the commodious houses of the Arabs in Tabora, and the apparent comfort in which these merchants lived. They had sent forward a messenger to announce their coming, according to the custom of the country, and when a short distance from the town they met Said bin Amir, one of the resident merchants, who had come out to meet them. The merchant was clad in the flowing robes which proclaimed him a disciple of Mohammed, and his features were readily distinguishable from those of the negroes. He invited our friends to his house, and said he would accompany them to call on the governor as soon as that dignitary was ready to receive them. [Illustration: SAID BIN AMIR'S HOUSE.] The house was a single story in height and covered a considerable area. Frank and Fred were reminded of some of the houses they visited in Egypt, and especially of the one where they were lodged at Khartoum. In fact, it was the finest dwelling they had seen since leaving the capital of the Soudan provinces, with the possible exception of the palace of King M'tesa. It was built round a court-yard, and there was a veranda in front, where they sat in the shade and sipped the delicious coffee which their host ordered as soon as they were seated.