on the 23d of June, 1871, where he sent forward his communication. The caravan had need of rest, and it was necessary to refit while an opportunity was at hand through the medium of the Arab caravans then on their way to various points on the coast with ivory and slaves. The expedition had suffered terribly, but the heart of the HERALD explorer never gave out. THE TERRIBLE CLIMATE of the countries through which it had passed told on it even more than the difficulties of the tribes at war among themselves and upon everything that came in their way and which they were in sufficient force to attack. The caravans met at the various halting places threw every discouragement in the way, which tended to destroy the _morale_ of the expedition. SEEDY BOMBAY, however, the captain of the expedition, proved invaluable in controlling the disaffected, whether with tact or a wholesome display of force when necessary. THE INCESSANT RAINS, alternated with a fierce African sun, made the atmosphere heavy, charged with moisture, and producing a rank, rotten vegetation. In the mountainous regions which we traversed the climate was of course, much better, and the result was that the expedition much improved in health. The miasmatic vapors and other hardships of the journey had played sad havoc with its number and force. THE TOTAL LOSS up to this point by sickness had been one white man, two of the armed escort, and eight of the pagazis or native porters. The two horses had also succumbed, and twenty-seven of the asses had either fallen by the wayside and had to be abandoned or else the rascally native donkey leaders had allowed them to stray from the kraal at night. As a consequence, a considerable quantity of the stores were either lost or wasted, but the rolls of Merikani (American cloth)--for shukkah and doti--the beads and wire--had been as far as possible preserved, they being the only money in Central Africa. In July ALL WAS PREPARED TO MOVE through Unyanyembe; but before long it was found that almost insuperable difficulties were interposed. The country there is composed of thick jungle, with large clearings for the cultivation of holcus. The utmost alarm and excitement were spread through the native villages at THE EXPECTATION OF A WAR. The inhabitants were shy of intercourse, and it was with great difficulty that supplies could be obtained. A little further on the villages on either side of the track were found to be filled with Arab CARAVANS AFRAID TO ADVANCE and gathering together for security. The cause of all this alarm was soon discovered. The ku honga or blackmail levied by the head men of the tribes as a sort of toll for passage through their territories, had been inordinately raised in the Ujowa country by MIRAMBO,