At a conference with the secretaries of the Church Missionary Society in London, Major Straith and the Rev. Mr Venn had intrusted me with an open letter to their employé, dated Sept. 30, 1856, giving him leave of absence in case he decided to accompany the East African expedition at the expense of the latter. They had neglected to forward a copy, but M. Rebmann had received a second communication, which he did not before produce. His earliest impulse was evidently to assist in carrying out the plans which had been first formed by the ‘Mombas Mission,’ and personally to verify the accuracy of the map, then so loudly and violently criticised, now gaining credit every year. But presently cool reflection came. He was not in strong health; he had, perhaps, seen enough of the interior; and, possibly, after a few conversations he thought that we relied too much on the arms of flesh—sword and gun. The home instructions were, ‘The Committee have only to remark that they entirely confide in you, as one of their missionaries, that wherever you go you will maintain all the Christian principles by which you are guided; that should you see fit to go with the expedition your experience and knowledge of the language may prove very valuable; while you may also obtain access to regions and tribes where missionary enterprise may be hereafter carried on with renewed vigour.’ This did not quite suit us, who had been pledged by Lieut.-Colonel Hamerton to avoid ‘Dutchmen’ and proselytizing. Briefly, M. Rebmann did not accompany us. A few weeks afterwards we met him again at Zanzibar, whither he had been driven by the plundering Wamasai in February, 1857. His passion for the ‘wunderbar’ had not abated, and he told us impossible legends about vast forests and other mythical features, near the Nyassa, southern or Zambezean Lake. During the years which he had spent in the Wanyika country he had never studied its language; but when driven from it, he immediately applied himself to Kinyika. An honest and conscientious man, he had yet all the qualities which secure unsuccess. He was the last of the ten members of the hapless Mission: all of them were attacked by bilious remittents a few weeks after commencing their labours; several had died, and the others had sought less dangerous fields for labour, and some possibility of doing something in the spiritual way. That it has been highly successful, geographically speaking, none can doubt. The short trips into the interior, and the long conversations with the natives, duly published by Messrs Krapf, Rebmann, and Erhardt, gave an impulse to East African exploration utterly unknown before their day. And as the recent valuable labours of Messrs Wakefield and New prove, the ‘Mombas Mission’ is not likely to derogate from its former fame.