At the beginning of the 1950s, the interior of West and Central Africa was still known to most of the outside world as the 'White Man's Grave' and consisted of vast expanses of mysterious and threatening primeval forest. When Donald MacIntosh, 23-year-old Gaelic-speaking Scottish forester, was offered a position in Nigeria in 1954, it was a dream come true and he found himself posted to the hot, cloying humidity of those fabled lands. During the next...