This non-fiction book was first written in 1940, but could not be published in wartime conditions because paper was scarce, and minds were not on leisure pursuits. It was revised in the early 1950s. The author's love of the sport of fishing and of his adopted country Chile shines through the book, along with his gentle humour. It was his hope and intention to introduce the wonderful fly fishing in Chile to an English-reading audience. Now at last this fine book is published. The editor has added a brief biography of the author, footnotes and a preface, but otherwise the manuscript is as it was in 1952. In the revised edition photographs of the original maps recently discovered have been included.