Hardly had the party entered the Nun branch of the river, in August 1832, when the malaria commenced its ravages, causing the death of a captain and two seamen. The first business of the expedition was to find a suitable navigable channel among the many bewildering branches, creeks, and backwaters which spread a labyrinthine network over the delta, whose mangrove swamps were “uninviting when descried, repulsive when approached, dangerous when examined, and horrible and loathsome when their qualities and their inhabitants were known.” Here the air reeked with the essence of poisonous odours--damp, clammy, and deadly; and the nights were made hideous by the never-ceasing attacks of clouds of mosquitoes and sandflies. [Illustration: VIEW OF THE NIGER ABOVE LOKOJA.] For six weeks Laird was engaged in his exploration of the delta, with the result that eighteen men succumbed to fever. For a time the expedition threatened to end in the death of the entire party, hardly one escaping the dire effects of the malaria. But Laird and his companions were men not easily discouraged or defeated, and at length they got away from the deadly area, and reached the undivided river and healthier upper regions. It was like an escape from a loathsome purgatory to an earthly paradise, when the party sailed into the open reaches of the noble stream, barred in by tropic forest and swept by cooling breezes. Viewed commercially,however, the prospect proved somewhat unsatisfactory, and did not correspond with the glowing hopes with which the party had left England. There was no thought, however, of giving way to the first feeling of disappointment, and in the belief that matters would improve once beyond the barbarous zone, they continued their way up the river. Unfortunately, they had chosen the wrong time of the year to make the ascent. Already the river was falling. More than once the larger of the two steamers grounded on sand-banks, and finally had to be laid up till the rising of the waters should set in once more. Attempts to reach Rabba signally failed, though Laird ascended the Benué some distance in a boat. In the following season Oldfield and Lander were more successful. The Benué was ascended to a distance of 104 miles before they were compelled to return from want of supplies. On the Main Niger they were also more fortunate than in the previous year. Rabba was safely reached, and found to contain a population little short of 40,000, being at that time the capital of Nupé. Beyond Rabba it was found impossible to proceed, and it was deemed advisable to return to the coast, to recruit and prepare for another attempt to establish a trade in the river.