Although he says little of it at the time, Selous did an immense amount of tramping to and fro, all footwork because of the "fly," in the unhealthy country, both contiguous to and in the Portuguese territory about the Pungwi and Busi rivers in 1891 and 1892, in the hope of finding a road to the East Coast that would be free from the tsetse fly and where waggons could pass. In this he was unsuccessful, and he was reluctantly forced to admit that a railway would be the only method of transport to the coast, and that until this was made no progress was possible. However, his journeys carried him for the first time into the last great haunt of game south of the Zambesi, for at this time the whole of the territory in the neighbourhood of these rivers was one huge game reserve which, owing to its unhealthiness, was seldom visited by sportsmen or even meat-hunters. And so it continued till 1896, when the rinderpest swept off nine-tenths of the koodoos, elands and buffalo. Since that day the game recovered in a measure, and even to-day there is more game there than anywhere south of the Zambesi, but it contains a shadow of its former abundance at the time when Selous first visited it. Practically Selous was the first white man to see this great assembly of game and to hunt them, for the Portuguese were not hunters and never left the footpaths. He found vast herds of buffaloes in the reed-beds, bushbucks as tame as in the Garden of Eden stood gazing at a few yards and did not fly at the approach of man, whilst out on the plains there was a constant procession of Liechtenstein's hartebeest, blue wildebeests, tsessebes, water-bucks, zebras, and here and there were always scattered parties of reedbucks, oribis, and the smaller antelopes. Wart-hogs and bush-pigs were equally tame and confiding, and hippopotami disported in the rivers and lagoons in broad daylight, and there was not a night that several troops of lions were not heard roaring. Yet curiously enough, in spite of the abundance of the last-named, Selous only saw three individuals, one of which he killed after it had charged twice. This, he says, was the last of "thirty-one lions I have shot."[42] This number does not tally with the statement, "I have only shot twenty-five lions when entirely by myself,"[43] but the discrepancy is accounted for by the fact that he killed six lions between 1893 and 1896. The opening up of the new country proceeded rapidly till June, 1892, when Selous wrote to his mother from Salisbury:--