This book is in no sense a diary of day-to-day travel. Only a single chapter is devoted to the account of the extraordinary journey which Captain[viii] Buchanan and his cinematographer, Mr. Glover, made from Kano in Nigeria to Touggourt in Algiers—a journey of over 3,500 miles through the great desert of Africa. Some idea of the hardships which they encountered may be gathered from the fact that, while they started with a caravan of thirty-six camels and fifteen natives, they finished with a single camel and only two natives, after fifteen months of travel. The reader is never wearied by monotonous logs of distances covered day by day or of the countless difficulties overcome on the long long trail. Only the last few days, when victory was in sight, are briefly sketched. But in earlier chapters we have vivid pictures of the perils that are inseparable from travel over vast sandy wastes, where a burning sun beats down with relentless fury, and where the lives of men and beasts alike depend on their finding water at least every six or seven days. One chapter describes one of the sandstorms that all but engulfed the caravan in the shelterless plain—another, the rare experience of torrential rain which may be almost as devastating, but, unlike the sandstorm, is fraught with blessing, for it brings food to the starving mammals that haunt the fringe of the great desert.