Indonesia

One of the earliest leper hospitals in Britain was built in London near the beginning of the 12th century by Queen Matilda, the wife of Henry I. It was a benign combination of housing, hospital and chapel, with patients free to come and go as they wished. Matilda started a fashion among the wealthy, so that by 1350 there were more than 300 such hospitals across the kingdom. Far from lepers being shunned and feared as outcasts, therefore, their treatment for much of the medieval period was enlightened. ‘The mythology of the “medieval leper” seems no more real than that of the vampire or ghoul,’ writes Oliver Basciano. The author is a journalist who has worked for the Financial Times and the BBC.

Plants regularly lose out to animals in the charisma stakes. In Pathless Forest, Chris Thorogood seeks to promote a new face of Southeast Asian conservation: Rafflesia, one of the strangest and most gruesome plants on the planet. Rafflesia is a parasitic plant, deriving everything that it needs from its host, spending most of its life as a microscopic thread hidden inside a vine. It cannot photo-synthesise and survives without roots, stem or leaves. Once every few years, buds emerge which take nine months to mature. Finally open, the enormous five-lobed flowers resemble slabs of bloody, white-flecked meat. Most spectacular of all is Rafflesia arnoldii, the largest single flower in the world, a metre across, weighing up to 10kg. And then there’s the smell.

Being a volcanologist demands a quiverful of skills. You need to be in command of multiple branches of science, including geophysics, geochemistry and seismology. But you must also understand people for whom science matters less than sorcery: people living near volcanoes, for whom they are sacred places, homes to ancestors, sites of miracles, mountains where God’s intervention in human affairs is made manifest in ash, fumes and flame. And you have to be brave. When it comes to studying volcanoes, risk and reward go hand in hand. So a volcanologist must be willing to peer over the edge of a crater, breathing in smoke ‘inconvenient to respiration’, crying acid tears.