When honored with a special meeting of welcome by the Royal Geographical Society a few days after my arrival in London in December last, Sir Roderick Murchison, the President, invited me to give the world a narrative of my travels; and at a similar meeting of the Directors of the London Missionary Society I publicly stated my intention of sending a book to the press, instead of making many of those public appearances which were urged upon me. The preparation of this narrative* has taken much longer time than, from my inexperience in authorship, I had anticipated.