William Dalrymple celebrates the writing of Peter Matthiessen who died this month, comparing him with another of his favourite travel writers, Patrick Leigh Fermor. "Both were footloose scholars who left their studies and libraries to walk in the wild places of the world, erudite and bookish wanderers, scrambling through remote mountains, notebooks in hand, rucksacks full of good books on their shoulders."

Producer: Sheila Cook.