John HemmingJohn Hemming was Director of the Royal Geographical Society in London from 1975 to 1996. He has been on several surveying and environmental expeditions to unexplored parts of Amazonia, and has probably visited more Indian tribes than any other non-Brzilian. For this work he has been awarded the Brazilian Order of the Southern Cross and the Peruvian Order of Merit for contributions to their countries. He is the author of several books. Read More Read Less